CCC: Cryptocurrency Course slide set

Final Exam

## The End
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`62,417; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,197; [ETH gas](https://etherscan.io/gastracker): 7 gwei => `$`0.47 @ 2024-04-29 01:20:10
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are mostly caught up
- Grading
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is manually graded, so won't be back for a while
  - [HW 10: Arbitrage](../hws/arbitrage/index.html) was due this past Tuesday
    - Grades will be back in a few days
- Homeworks
  - [HW 11: Metamask](../hws/metamask/index.html) is out and due tomorrow (Tuesday, 4/30)
- Final exam
  - There *may be* a *practical* component, for which you'll have to bring your notebook (with S4 & S5 run)
  - Details to follow in a few days
- Today we'll quickly finish up [zkSNARKs](../slides/zksnarks.html#/), starting on 5.1, then the [course conclusion](../slides/conclusion.html#/)

From here

## Lecture 41: Fri, Apr 26th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`64,414; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,146; [ETH gas](https://etherscan.io/gastracker): 5 gwei => `$`0.33 @ 2024-04-25 23:14:09
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are mostly caught up
- Grading
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is manually graded, so won't be back for a while
- Homeworks
  - [HW 10: Arbitrage](../hws/arbitrage/index.html) was due this past Tuesday
    - Average time taken: 8.18 hours, stdev 3.74, n=44
  - [HW 11: Metamask](../hws/metamask/index.html) is out and due next Tuesday (4/30)
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today is an open work day
  - Monday we'll quickly finish up [zkSNARKs](../slides/zksnarks.html#/), starting on 5.1, then a course wrap-up

From here

## Lecture 40: Wed, Apr 24th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`66,664; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,225; [ETH gas](https://etherscan.io/gastracker): 7 gwei => `$`0.47 @ 2024-04-23 20:41:30
- The [Bitcoin halving](https://crypto.com/bitcoin/halving-countdown): price was $64,120
  - [Hash rate graph](https://www.blockchain.com/explorer/charts/hash-rate)
  - Part of the reason: [Bitcoin Runes](https://www.coingecko.com/learn/what-are-bitcoin-runes)
    - Send money to an `OP_RETURN` (which cannot be redeemed) to create a fungible token of that value
    - Included in the TXN are a number of parameters for the token (ID, symbol, etc.)
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are mostly caught up
- Grading
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is manually graded, so won't be back for a while
- Homeworks
  - [HW 10: Arbitrage](../hws/arbitrage/index.html): how did it go?
  - [HW 11: Metamask](../hws/metamask/index.html) will be out tonight (I'll post on Piazza when it's ready)
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [The Dark Side of Cryptocurrency](../slides/darkside.html#/) starting on 6.19
  - Next up: [zkSNARKs](../slides/zksnarks.html#/), but briefly
  - Then... what?

From here

## Lecture 39: Mon, Apr 22nd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`64,545; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,142; [ETH gas](https://etherscan.io/gastracker): 6 gwei => `$`0.40 @ 2024-04-21 16:40:11
- The [Bitcoin halving](https://crypto.com/bitcoin/halving-countdown): price was $64,120
  - Last block of 6.25 BTC: [839,999](https://www.blockchain.com/explorer/blocks/btc/839999)
  - First block of 3.125 BTC: [840,000](https://www.blockchain.com/explorer/blocks/btc/840000) on April 19, 2024 at 08:09:27 am (with massive TXN fees)
  - So far the price has remained stable
  - It's too early to see the effect on the network hash rate
  - Next [halving countdown](https://www.theblock.co/trackers/bitcoin-halving): April 2028
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are mostly caught up
- Grading
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is manually graded, so won't be back for a while
- Homeworks
  - [HW 10: Arbitrage](../hws/arbitrage/index.html) is out, and due on tomorrow (Tuesday, April 23rd)
    - The necessary information is on the Canvas landing page
  - HW 11: Metamask (not yet ready) will be out by Wednesday
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [The Dark Side of Cryptocurrency](../slides/darkside.html#/) starting on 5.1

From here

## Lecture 38: Fri, Apr 19th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`63,157; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,057; [ETH gas](https://etherscan.io/gastracker): 7 gwei => `$`0.45 @ 2024-04-18 20:40:50
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are mostly caught up
- Grading
  - [HW P8: DEX](../hws/dex/index.html) grades were released Sunday night
- Homeworks
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) was due Wednesday
    - This requires manual grading, so it won't be back for a while
    - Average time taken: 5.35 hours, stdev 1.91, n=44
  - [HW 10: Arbitrage](../hws/arbitrage/index.html) is out, and due on Tuesday
    - The necessary information is on the Canvas landing page
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Ethics, Legality, and Policy](../slides/ethics-legal-policy.html#/), starting on 4.1
  - Next up: [The Dark Side of Cryptocurrency](../slides/darkside.html#/)

From here

## Lecture 37: Wed, Apr 17th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`64,009; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,096; [ETH gas](https://etherscan.io/gastracker): 7 gwei => `$`0.46 @ 2024-04-16 23:45:59
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are all caught up!!!
  - Or, rather, they were as of late Sunday
- Grading
  - [HW P8: DEX](../hws/dex/index.html) grades were released Sunday night
- Homeworks
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) was due yesterday; how did it go?
    - Average time taken: 5.35 hours, stdev 1.91, n=44
  - [HW 10: Arbitrage](../hws/arbitrage/index.html) is *mostly* ready
    - A few more explanations will be entered today (execution runs)
    - The DEXes will be enabled today as well
    - The necessary information is (or will be) on the Canvas landing page
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will finish with [Stablecoins & Oracles](../slides/stablecoins.html#/), starting on 9.8
  - Next up: [Ethics, Legality, and Policy](../slides/ethics-legal-policy.html#/)

From twitter

## Lecture 36: Mon, Apr 15th: TAX DAY
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`65,099; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,130; [ETH gas](https://etherscan.io/gastracker): 9 gwei => `$`0.59 @ 2024-04-14 22:42:10
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are all caught up!!!
- Grading
  - [HW P8: DEX](../hws/dex/index.html) grades were released last night
- Homeworks
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is due this Tuesday, April 16th
    - The necessary information is on the Canvas landing page
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Stablecoins & Oracles](../slides/stablecoins.html#/), starting on 6.7

From here

## Lecture 35: Fri, Apr 12th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`70,935; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,524; [ETH gas](https://etherscan.io/gastracker): 12 gwei => `$`0.89 @ 2024-04-11 23:36:55
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Grading
  - [HW P7: Auction](../hws/auction/index.html) grades were released on Sunday
    - The auto-grader bombed on a few assignments -- if this happened to you, please submit a regrade
- Homeworks
  - [HW P8: DEX](../hws/auction/index.html) was due Tuesday
    - Average time taken: 7.93 hours, stdev 3.37, n=45
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is due next Tuesday, April 16th
    - The necessary information is on the Canvas landing page
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will start on [Stablecoins & Oracles](../slides/stablecoins.html#/)

From here

## Lecture 34: Wed, Apr 10th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`69,239; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,507; [ETH gas](https://etherscan.io/gastracker): 20 gwei => `$`1.47 @ 2024-04-09 18:31:02
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Grading
  - [HW P7: Auction](../hws/auction/index.html) grades were released on Sunday
    - The auto-grader bombed on a few assignments -- if this happened to you, please submit a regrade
- Homeworks
  - [HW P8: DEX](../hws/auction/index.html) was due yesterday -- how did it go?
    - Stats: ...
  - [HW P9: DAO & web3](../hws/daoweb3/index.html) is due next Tuesday, April 16th
    - The necessary information is on the Canvas landing page
- "Reading" due today: listen to the [Radiolab: The Ceremony episode](https://radiolab.org/podcast/ceremony) from Feb 25, 2021 (47 min)
  - You can listen to it online [here](https://podtail.com/podcast/radiolab/radiolab-the-ceremony/) for free, downloaded from [here](https://waaa.wnyc.org/radiolab_podcast/radiolab_podcast17crypto.mp3/radiolab_podcast17crypto.mp3_ywr3ahjkcgo_e4bd84ddb629a65cd62a138756850481_46335275.mp3) for free, and a copy is in Canvas' files
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Consensus](../slides/consensus.html#/) starting on 7.31
  - Next up: [Stablecoins & Oracles](../slides/stablecoins.html#/)

From here

## ECLIPSE DAY!!!
- Eclipse information
  - Begins at 2:01 pm, ends at 4:31 pm
  - Maximum at 3:17 pm (88.3% covered)
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`69,413; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,430; [ETH gas](https://etherscan.io/gastracker): 10 gwei => `$`0.72 @ 2024-04-07 22:08:40
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
  - No OH for me today because of the eclipse
- Grading
  - [HW P7: Auction](../hws/auction/index.html) grades ...
- Homeworks
  - [HW P8: DEX](../hws/auction/index.html) is due this Tuesday
    - The necessary information is on the Canvas landing page
    - If you didn't get your TokenCC to work correctly, I can deploy one for you
- "Reading" due this Wed, 4/10: listen to the [Radiolab: The Ceremony episode](https://radiolab.org/podcast/ceremony) from Feb 25, 2021 (47 min)
  - You can listen to it online [here](https://podtail.com/podcast/radiolab/radiolab-the-ceremony/) for free, downloaded from [here](https://waaa.wnyc.org/radiolab_podcast/radiolab_podcast17crypto.mp3/radiolab_podcast17crypto.mp3_ywr3ahjkcgo_e4bd84ddb629a65cd62a138756850481_46335275.mp3) for free, and a copy is in Canvas' files
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Consensus](../slides/consensus.html#/) starting on 5.1

From here

## Lecture 32: Fri, Apr 5th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`67,925; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,298; [ETH gas](https://etherscan.io/gastracker): 36 gwei => `$`2.49 @ 2024-04-04 21:44:04
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
  - My OH on Monday will be 2-4, with an eclipse break in the middle
- Grading
  - [HW P6: Tokens](../hws/tokens/index.html) grades were returned this past Tuesday
- Homeworks
  - [HW P8: DEX](../hws/auction/index.html) is due next Tuesday
    - The necessary information is on the Canvas landing page
    - If you didn't get your TokenCC to work correctly, I can deploy one for you
- "Reading" due next Wed, 4/10: listen to the [Radiolab: The Ceremony episode](https://radiolab.org/podcast/ceremony) from Feb 25, 2021 (47 min)
  - You can listen to it online [here](https://podtail.com/podcast/radiolab/radiolab-the-ceremony/) for free, downloaded from [here](https://waaa.wnyc.org/radiolab_podcast/radiolab_podcast17crypto.mp3/radiolab_podcast17crypto.mp3_ywr3ahjkcgo_e4bd84ddb629a65cd62a138756850481_46335275.mp3) for free, and a copy is in Canvas' files
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Scalability](../slides/scalability.html#/) starting on 7.12
  - Next up: [Consensus](../slides/consensus.html#/)

From reddit

## Lecture 31: Wed, Apr 3rd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`66,322; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,316; [ETH gas](https://etherscan.io/gastracker): 21 gwei => `$`1.46 @ 2024-04-03 00:11:02
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Grading
  - [HW P6: Tokens](../hws/tokens/index.html) grades were returned last night
- Homeworks
  - [HW P7: Auctioneer](../hws/auction/index.html) was due yesterday: how did it go?
    - Average time taken: 4.90 hours, stdev 1.74, n=41
  - [HW P8: DEX](../hws/auction/index.html) is due next Tuesday
    - The necessary information is on the Canvas landing page
    - If you didn't get your TokenCC to work correctly, I can deploy one for you
- "Reading" due next Wed, 4/10: listen to the [Radiolab: The Ceremony episode](https://radiolab.org/podcast/ceremony) from Feb 25, 2021 (47 min)
  - You can listen to it online [here](https://podtail.com/podcast/radiolab/radiolab-the-ceremony/) for free, downloaded from [here](https://waaa.wnyc.org/radiolab_podcast/radiolab_podcast17crypto.mp3/radiolab_podcast17crypto.mp3_ywr3ahjkcgo_e4bd84ddb629a65cd62a138756850481_46335275.mp3) for free, and a copy is in Canvas' files
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Scalability](../slides/scalability.html#/) starting on 3.8

From here

## Lecture 30: Mon, Apr 1st
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`70,847; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,610; [ETH gas](https://etherscan.io/gastracker): 20 gwei => `$`1.52 @ 2024-03-31 22:15:26
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P7: Auctioneer](../hws/auction/index.html) is out and due next Tuesday (April 2nd)
    - If you didn't get your NFTManager working correctly, let me know and I'll deploy one for you
      - But you have to let me know well before next Tuesday evening
  - HW P8: DEX will be out in a day or two
    - We'll go over it today
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we are going to continue with [Blockchain Applications](../slides/applications.html#/), starting on 4.4
  - Next up: [Scalability](../slides/scalability.html#/)

From here

## Lecture 29: Fri, Mar 29th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`70,844; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,578; [ETH gas](https://etherscan.io/gastracker): 25 gwei => `$`1.88 @ 2024-03-28 21:39:51
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P6: Tokens](../hws/tokens/index.html) was due yesterday; how did it go?
    - A few people have issues with their logo, and were emailed; please fix by the end of the day today
  - [HW P7: Auctioneer](../hws/auction/index.html) is out and due next Tuesday (April 2nd)
    - If you didn't get your NFTManager working correctly, let me know and I'll deploy one for you
      - But you have to let me know well before next Tuesday evening
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we are going to continue with [Blockchain Applications](../slides/applications.html#/), starting on 3.31

From reddit

## Lecture 28: Wed, Mar 27th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`70,305; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,613; [ETH gas](https://etherscan.io/gastracker): 23 gwei => `$`1.75 @ 2024-03-26 22:06:15
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P6: Tokens](../hws/tokens/index.html) was due yesterday; how did it go?
    - Note that the explorer shows a list of TCCs; also NFT holders
    - Compilation of the .sol files in Remix was a bit bumpy
    - A bunch of you didn't follow all the guidelines for the TCC logos
      - I'll email you tonight, and you can fix it until this Friday without a penalty
    - Average time taken: 3.67 hours, stdev 1.43, n=46
    - Used GenAI for TCC logo: 43.5% (20/46); for NFTs: 52.2% (24/46)
      - 19 GPT4 / DALL-E, 2 Canva, 6 other individual ones (Designer, Craiyon, DaVinci, Gemini, Nightcafe, PIXLR)
    - Let's look at the NFT images and the TCC logos!
  - [HW P7: Auctioneer](../hws/auction/index.html) is out and due next Tuesday (April 2nd)
    - If you didn't get your NFTManager working correctly, let me know and I'll deploy one for you
      - But you have to let me know well before next Tuesday evening
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we are going to continue with [Blockchain Applications](../slides/applications.html#/), starting on 3.6

From reddit

From here

## Lecture 27: Mon, Mar 25th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`66,747; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,435; [ETH gas](https://etherscan.io/gastracker): 19 gwei => `$`1.37 @ 2024-03-24 18:26:20
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P6: Tokens](../hws/tokens/index.html) is out, and due this Tuesday (3/26)
    - The necessary contract (NFTManager) has been deployed; link on Canvas landing page and explorer home page
    - I fixed the .sol includes on Wednesday -- you can download them as a .zip file also
    - I just added three keys in the 'other' dictionary in tokens.py, and one in the 'sanity_checks' dictionary
    - Note that the explorer shows a list of TCCs; also NFT holders
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- We are going to go back to [Mining](../slides/mining.html#/), starting on 7.7
  - Next up: [Blockchain Applications](../slides/applications.html#/)

From here

## Lecture 26: Fri, Mar 22nd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`65,847; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,520; [ETH gas](https://etherscan.io/gastracker): 26 gwei => `$`1.92 @ 2024-03-21 18:16:37
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P6: Tokens](../hws/tokens/index.html) is out, and due next Tuesday (3/26)
    - The necessary contract (NFTManager) has been deployed; link on Canvas landing page and explorer home page
    - I fixed the .sol includes on Wednesday -- you can download them as a .zip file also
    - I just added three keys in the 'other' dictionary in tokens.py, and one in the 'sanity_checks' dictionary
    - Note that the explorer shows a list of TCCs; also NFT holders
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Today we will continue with [Tokens](../slides/tokens.html#/) starting on 6.1
  - We will come back to Mining, starting on 7.7, later in the semester

From here

## Lecture 25: Wed, Mar 20th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`62,270; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,167; [ETH gas](https://etherscan.io/gastracker): 32 gwei => `$`2.13 @ 2024-03-19 22:06:51
- Let's see how our [silly ape NFT](https://opensea.io/assets/ethereum/0xbc4ca0eda7647a8ab7c2061c2e118a18a936f13d/4753) is doing!
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW P5: Gradebook](../hws/gradebook/index.html) was due yesterday: how did it go?
    - Average time taken: 3.19 hours, stdev 1.27, n=44
  - [HW P6: Tokens](../hws/tokens/index.html) is out, and due next Tuesday (3/26)
    - Some of the contracts have not yet been deployed; that should happen by Friday
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) before spring break
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - I changed the rubric for the Satoshi question
  - Regrades are open the middle of this week
- Today we will continue with [Tokens](../slides/tokens.html#/) starting on 5.1
  - We will come back to Mining, starting on 7.7, later in the semester

From here

## Lecture 24: Mon, Mar 18th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`67,852; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,599; [ETH gas](https://etherscan.io/gastracker): 23 gwei => `$`1.74 @ 2024-03-17 23:02:03
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW S5: dApp Introduction](../dappintro/index.html) was due last Thursday
    - We'll see the list of poll purposes next
  - [HW P5: Gradebook](../hws/gradebook/index.html) is ready, and due next Tuesday (March 19th)
    - The necessary information is on the Canvas landing page
  - HW P6: Tokens will be out by Wednesday
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) before spring break
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - I changed the rubric for the Satoshi question
  - Regrades are open the middle of this week
- Today we will start on [Tokens](../slides/tokens.html#/)
  - We will come back to Mining, starting on 7.7, later in the semester

## Poll Purposes

- Best ACC Basketball Team
- Best Movie?
- Best Virginia college
- Favorite Computer Science Professor (not a comprehensive list)
- Favorite Pokemon
- Favorite UVA sports team
- Favorite animal
- Favorite anti-hero in fiction
- Favorite car!
- Favorite coffee chain
- Favorite continent
- Favorite coordinal direction
- Favorite cuisine
- Favorite democracy
- Favorite food (x2)
- Favorite form of pineapple
- Favorite gen 1 Pokemon starter?
- Favorite instrument
- Favorite movie genre
- Favorite music genre

</td><td>

- Favorite name for my dnd character
- Favorite pet
- Favorite prime number
- Favorite programming language (x2)
- Favorite season (x2)
- Favorite shoe brand
- Favorite soup
- Favorite sport (x2)
- Favorite swim stroke
- Favorite video game
- If you could only have one social media, which one would it be
- Rate this poll
- What color is the sky?
- What type of UVA student are you?
- What would you rather have as a pet?
- Which of the seven dwarves are you?
- Who is your Favorite UVA basketball player?
- Who will win the NCAA mens lacrosse championship?
- Who would win in a free for all battle?

</td></tr></table>

From here

## Lecture 23: Fri, Mar 15th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`70,776; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,830; [ETH gas](https://etherscan.io/gastracker): 48 gwei => `$`3.86 @ 2024-03-14 17:46:03
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Homeworks
  - [HW S5: dApp Introduction](../dappintro/index.html) was due last night, with a late submission deadline of 11 a.m. today
    - Let's see the results of the poll!
    - I'll have a list of all your polls on Monday
  - [HW P5: Gradebook](../hws/gradebook/index.html) is ready, and due next Tuesday (March 19th)
    - The necessary info is on the Canvas landing page
- Please bring your laptops to class today, with HWs S4 & S5 run on them
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) before spring break
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - I changed the rubric for the Satoshi question
  - Regrades are open until early next week
- Today we will continue with [Solidity](../slides/solidity.html#/) starting on 6.7
  - Next up: [Tokens](../slides/tokens.html#/)
  - We will come back to Mining, starting on 7.7, later in the semester

From here

## Lecture 22: Wed, Mar 13th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`71,491; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,983; [ETH gas](https://etherscan.io/gastracker): 45 gwei => `$`3.76 @ 2024-03-12 21:11:41
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
    - My office hours today will be 12-1:30, not 8:30-9
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are all caught up
- Homeworks
  - [HW S5: dApp Introduction](../dappintro/index.html) is out, and due this *Thursday* (tomorrow) by 11:59 pm
    - There will not be (much of) a late period for this one!
  - [HW P5: Gradebook](../hws/gradebook/index.html) is ready, and due next Tuesday (March 19th)
    - The necessary info is on the Canvas landing page
- Please bring your laptops to class on Friday, with HWs S4 & S5 run on them
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) before spring break
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - I changed the rubric for the Satoshi question
  - Regrades are open
- Today we will continue with [Solidity](../slides/solidity.html#/) starting on 5.4
  - We will come back to Mining, starting on 7.7, later in the semester (possibly today, if we finish early)

From reddit

## Lecture 21: Mon, Mar 11th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`68,360; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,830; [ETH gas](https://etherscan.io/gastracker): 42 gwei => `$`3.38 @ 2024-03-10 23:02:13
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402, TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
    - My office hours Wednesday will be 12-1:30, not 8:30-9
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are all caught up
- Homeworks
  - [HW S5: dApp Introduction](../dappintro/index.html) is out, and due this *Thursday* by 11:59 pm
    - There will not be (much of) a late period for this one!
  - HW P5: Gradebook will be out by Wednesday
- Please bring your laptops to class on Friday, with HWs S4 & S5 run on them
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) before spring break
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - I changed the rubric for the Satoshi question
  - Regrades will open up today
- Today we will continue with [Solidity](../slides/solidity.html#/) starting on 4.27
  - We will come back to Mining, starting on 7.7, later in the semester

From here

## Lecture 20: Fri, Mar 1st
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`60,857; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,356; [ETH gas](https://etherscan.io/gastracker): 38 gwei => `$`2.68 @ 2024-02-29 21:25:27
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
    - And also right after class today
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
    - But 1-3 (not 2-4) today
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are backed up again
- Homeworks
  - [HW S4: Private Ethereum Blockchain](../hws/ethprivate/index.html) is out and due today, Friday, March 1st
    - The info needed is on the Canvas landing page
    - Grades are available as soon as you submit
  - [HW S5: dApp Introduction](../dappintro/index.html) is out, and the *Thursday* after spring break
    - There will not be a late period for this one!
- You will need your laptop / notebook in class the Friday after spring break
  - With HW S4 and HW S5 run on it
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- [Midterm](../exams/midterm-s24.pdf) on Wednesday!  How was it?  We'll go over it today
  - Average was 33.9/48 (70.5%) with a standard deviation of 5.5 (11.5%)
  - Regrades will open up today
- HooHacks!  March 23-24.  Info at https://hoohacks.io, sign up at https://app.hoohacks.io.
- Today we will continue with [Solidity](../slides/solidity.html#/) starting on 4.10
  - We will come back to Mining, starting on 7.7, later in the semester

From twitter

## Lecture 18: Mon, Feb 26th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`51,676; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,099; [ETH gas](https://etherscan.io/gastracker): 25 gwei => `$`1.63 @ 2024-02-25 18:22:43
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW S4: Private Ethereum Blockchain](../hws/ethprivate/index.html) is out and due next Friday, March 1st
    - The info needed is on the Canvas landing page
    - Grades are available as soon as you submit
  - HW S5: dApp Introduction, will be due the Wednesday or Thursday after spring break
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Midterm on Wednesday!
- HooHacks!  March 23-24.  Info at https://hoohacks.io, sign up at https://app.hoohacks.io.
- Today we will start on [Solidity](../slides/solidity.html#/)
  - We will come back to Mining, starting on 7.7, later in the semester

From here

## Lecture 17: Fri, Feb 23rd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`51,028; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,939; [ETH gas](https://etherscan.io/gastracker): 31 gwei => `$`1.91 @ 2024-02-22 22:26:15
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
  - No office hours after the midterm until classes resume after spring break
- Support requests are now enabled
- Homeworks
  - [HW S4: Private Ethereum Blockchain](../hws/ethprivate/index.html) is out and due next Friday, March 1st
    - The info needed is on the Canvas landing page
    - Grades are available as soon as you submit
  - HW S5: dApp Introduction, will be due the Wednesday or Thursday after spring break
- About the course blockchain: it's there for educational purposes, so feel free to experiment with it
  - But don't do anything like sending a huge number of TXNs
- Next week is the midterm, on Wednesday
- Today we will continue with [Mining](../slides/mining.html#/), starting on 5.18
  - Monday we start on [Solidity](../slides/solidity.html#/), and will come back to finish mining later

From here

## Lecture 16: Wed, Feb 21st
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`51,964; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`3,009; [ETH gas](https://etherscan.io/gastracker): 31 gwei => `$`1.96 @ 2024-02-20 23:40:34
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled, and I'm all caught up
  - Other than a few recent regrades that I'm working through
- Homeworks
  - [HW P4: BTC Scripting](../hws/btcscript/index.html) was due yesterday
    - Um.... how did it go?
  - [HW S4: Private Ethereum Blockchain](../hws/ethprivate/index.html) is out and due next Friday, March 1st
    - The info needed is on the Canvas landing page
    - Grades are available as soon as you submit
  - HW S5: dApp Introduction, will be due the Wednesday or Thursday after spring break
- Next week is the midterm, on Wednesday
- Today we will continue with [Mining](../slides/mining.html#/), starting on 4.1

From here

## Lecture 15: Mon, Feb 19th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`52,190; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,886; [ETH gas](https://etherscan.io/gastracker): 18 gwei => `$`1.09 @ 2024-02-18 23:40:44
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled, and I'm all caught up
- Homeworks
  - [HW P4: BTC Scripting](../hws/btcscript/index.html) is ready, and is due tomorrow, Tuesday, February 20th
    - There are typical delays on the BTC test networks, so don't wait until the last minute to start this
    - The submission system is having problems with some of the tests, which is why it is not ready yet
    - About the caching of TXNs upon submission
  - HW S4: Private Ethereum Blockchain, will be due late next week (after the midterm)
  - HW S5: dApp Introduction, will be due the Wednesday or Thursday after spring break
- Next week is the midterm, on Wednesday
- Today we will continue with [Ethereum](../slides/ethereum.html#/), starting on 4.1
  - Next up: [Mining](../slides/mining.html#/)

From here

## Lecture 14: Fri, Feb 16th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`52,203; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,842; [ETH gas](https://etherscan.io/gastracker): 16 gwei => `$`0.95 @ 2024-02-16 00:28:25
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled, but I'm way behind; I'll catch up this weekend
- Homeworks
  - [HW P4: BTC Scripting](../hws/btcscript/index.html) is ready, and is due next Tuesday, February 20th
    - There are typical delays on the BTC test networks, so don't wait until the last minute to start this
  - HW S3, reading of the Ethereum whitepaper, is due this today
    - Details about what parts to read and what parts to skip are on the Canvas landing page
  - The week after that is the midterm, the week after that is spring break
- Today we will continue with [Ethereum](../slides/ethereum.html#/), starting on 3.19

From here

## Happy Valentines Day!
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`49,616; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,633; [ETH gas](https://etherscan.io/gastracker): 18 gwei => `$`1.00 @ 2024-02-13 22:28:10
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P3: BTC Parser](../hws/btcparser/index.html) was due yesterday; how did it go?
  - [HW P4: BTC Scripting](../hws/btcscript/index.html) is ready, and is due next Tuesday, February 20th
    - There are typical delays on the BTC test networks, so don't wait until the last minute to start this
  - HW S3, reading of the Ethereum whitepaper, is due this Friday, February 16th
    - Details about what parts to read and what parts to skip are on the Canvas landing page
  - The week after that is the midterm, the week after that is spring break
- Today we will start on [Ethereum](../slides/ethereum.html#/)

## Lecture 12: Mon, Feb 12th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`48,134; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,503; [ETH gas](https://etherscan.io/gastracker): 21 gwei => `$`1.10 @ 2024-02-11 23:29:21
- Office hours
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P3: BTC Parser](../hws/btcparser/index.html) is ready, and is due tomorrow, Tuesday, February 13th
  - HW S3, reading of the Ethereum whitepaper, is due this Friday, February 16th
    - Details about what parts to read and what parts to skip are on the Canvas landing page
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting, and will be out Wednesday
  - The week after that is the midterm, the week after that is spring break
- Today we will continue with [Bitcoin](../slides/bitcoin.html#/), starting on 7.39

From here

## Lecture 11: Fri, Feb 9th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`45,338; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,422; [ETH gas](https://etherscan.io/gastracker): 56 gwei => `$`2.85 @ 2024-02-08 20:32:44
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P3: BTC Parser](../hws/btcparser/index.html) is ready, and is due Tuesday, February 13th
  - HW S3, reading of the Ethereum whitepaper, is due Friday, February 16th
    - Details about what parts to read and what parts to skip are on the Canvas landing page
- Upcoming HWs (not yet ready!)
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Upcoming schedule
  - HW P3 due next week
  - HW P4 due the following week
  - Then is the week of the midterm
  - Then spring break!
- Today we will continue with [Bitcoin](../slides/bitcoin.html#/), starting on 7.17

From here

## Lecture 10: Wed, Feb 7th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`42,982; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,317; [ETH gas](https://etherscan.io/gastracker): 31 gwei => `$`1.51 @ 2024-02-06 22:23:27
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), was due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
  - [HW P2: ECDSA](../hws/ecdsa/index.html) was due yesterday: how did it go?
  - [HW P3: BTC Parser](../hws/btcparser/index.html) is ready, and is due next Tuesday, February 13th
  - HW S3, reading of the Ethereum whitepaper, will be due late next week (or early the following week)
    - Details about what parts to read and what parts to skip are on the Canvas landing page
- Upcoming HWs (not yet ready!)
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- WICS hack-a-thon Feb 24th & 25th: https://www.wicsatuva.com/hack-the-map
- I've organized a middle school girls computing club!  Interested in helping out?
- Today we will continue with [Bitcoin](../slides/bitcoin.html#/), starting on 7.1

From here

## Lecture 9: Mon, Feb 5th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`42,503; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,300; [ETH gas](https://etherscan.io/gastracker): 12 gwei => `$`0.58 @ 2024-02-04 22:40:12
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) grades were returned: avg 8.4, stdev 2.9
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
  - HW [P2: ECDSA](../hws/ecdsa/index.html) is out, and due Tuesday, February 6th
- Upcoming HWs (not yet ready!)
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will continue with [Bitcoin](../slides/bitcoin.html#/), starting on 5.9

From here

## Lecture 8: Fri, Feb 2nd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`42,125; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,294; [ETH gas](https://etherscan.io/gastracker): 22 gwei => `$`1.06 @ 2024-02-01 22:31:47
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html): the grades can be returned this weekend
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
  - HW [P2: ECDSA](../hws/ecdsa/index.html) is out, and due Tuesday, February 6th
- Note the Python version on Gradescope is 3.10.12; I can upgrade that, if desired
- Upcoming HWs (not yet ready!)
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will start on [Bitcoin](../slides/bitcoin.html#/)

Password Strength

xkcd # 936

## Lecture 7: Wed, Jan 31st
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`42,900; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,341; [ETH gas](https://etherscan.io/gastracker): 18 gwei => `$`0.89 @ 2024-01-30 23:10:01
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) due yesterday: how did it go?
    - Grades can be returned this weekend
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
  - HW [P2: ECDSA](../hws/ecdsa/index.html) is out, and due next Tuesday, February 6th
- Upcoming HWs (not yet ready!)
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will continue with [Encryption](../slides/encryption.html#/), starting on slide 7.8

Cryptography

xkcd # 153

## Lecture 6: Mon, Jan 29th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`42,234; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,268; [ETH gas](https://etherscan.io/gastracker): 10 gwei => `$`0.48 @ 2024-01-28 21:57:28
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) is out, and is due tomorrow, Tuesday (Jan 30th) by midnight
    - Gradescope submission opens up 3 days before it is due
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
  - HW P2: ECDSA, will be out later today or early tomorrow
- Upcoming HWs (not yet ready!)
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will continue with [Encryption](../slides/encryption.html#/), starting on slide 6.1

From here

## Lecture 5: Fri, Jan 26th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`39,916; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,220; [ETH gas](https://etherscan.io/gastracker): 21 gwei => `$`0.98 @ 2024-01-25 21:18:47
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) is out, and is due Tuesday (Jan 30th) by midnight
    - Gradescope submission opens up 3 days before it is due
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
- Upcoming HWs (not yet ready!)
  - HW P2 (due Tue, Feb 6th) will be on ECDSA
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will continue with [Encryption](../slides/encryption.html#/), starting on slide 4.23

From reddit

## Lecture 4: Wed, Jan 24th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`39,630; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,217; [ETH gas](https://etherscan.io/gastracker): 9 gwei => `$`0.42 @ 2024-01-23 23:32:40
- Office hours are underway
  - Mine: M/W 8:30-10 am in Rice 402
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; all in Rice 442
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are now enabled
- Homeworks
  - Due yesterday: HW S1: course introduction survey
    - We'll go over the results on the next slide
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) is out, and is due Tuesday (Jan 30th) by midnight
    - Gradescope submission opens up 3 days before it is due
  - HW S2, reading the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/), will be due Mon, Feb 5th (at the start of lecture)
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
- Upcoming HWs (not yet ready!)
  - HW P2 (due Tue, Feb 6th) will be on ECDSA
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- Today we will start on [Encryption](../slides/encryption.html#/)

## Survey Topics Requested (n=72)
- Specific coins not previously scheduled: Dogecoin, Ripple, Lunar, Cardano
- Specific coins in the schedule: Solana, XRP (Stellar Lumens), Bitcoin Cash
- NFTs
- Gaming in web3
- Pros and cons of obtaining cryptocurrency ourselves
- How it works, does it translate to real money, current events i.e why did people lose so much money in 2020/2021
- Development of “s&@$ coins” and how there development can show clear indication of rug pulls and scams, and how to differentiate between high quality and innovative coins vs not
- I would like to know why coins like Cardano fail
- FTX fail, Mt. Gox fail, The DAO hack, L1s and L2s
- How bridging works across networks and how its implemented on obscure chains 
- Interested in learning about sustainability of cryptos

From twitter

## Lecture 3: Mon, Jan 22nd
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`41,679; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,467; [ETH gas](https://etherscan.io/gastracker): 10 gwei => `$`0.52 @ 2024-01-21 17:09:19
- Office hours start this week
  - Mine: M/W 8:30-10 am
  - TAs: Mon 6-8, Tue 2-4, Tue 6-8, Fri 2-4; room TBA
  - This is listed on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490), along with a link to the TA pictures and bios
- Support requests are enabled
- Homeworks
  - HW S1: course introduction survey is due this Tuesday (Jan 23rd) by midnight
    - The link is on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490)
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) is ready, and is due next Tuesday (Jan 30th) by midnight
    - Gradescope submission opens up 3 days before it is due
  - HW S2 will be a reading (the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/)), due the week *after* this week
    - I mis-spoke last Friday about the due date
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
- Upcoming HWs (not yet ready!)
  - HW P2 (due Tue, Feb 6th) will be on ECDSA
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- ENGR 1501: Cryptocurrency Mining class this semester! 1 credit; see the [flyer](https://www.cs.virginia.edu/~asb2t/engr1501-ccmining-flyer.pdf) & [syllabus](https://www.cs.virginia.edu/~asb2t/engr1501-ccmining-syllabus.pdf)
- Today we will continue with the [Cryptocurrency overview](../slides/overview.html#/) slide set, starting with the [Mining](../slides/overview.html#/mining) section
  - Next up: [Encryption](../slides/encryption.html#/)

Blockchain

xkcd # 2267

## Lecture 2: Fri, Jan 19th
- [BTC](https://finance.yahoo.com/quote/BTC-USD): `$`41,267; [ETH](https://finance.yahoo.com/quote/ETH-USD): `$`2,468; [ETH gas](https://etherscan.io/gastracker): 31 gwei => `$`1.61 @ 2024-01-18 20:37:12
- Homeworks
  - HW S1: course introduction survey is due next Tuesday (Jan 23rd) by midnight
    - The link is on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490)
  - [HW P1: Cryptocurrency Introductory](../hws/intro/index.html) is due the following Tuesday (Jan 30th) by midnight
    - It's all ready to go
    - Gradescope submission opens up 3 days before it is due
  - HW S2 will be a reading (the [Bitcoin whitepaper](https://bitcoinwhitepaper.co/)), due in late January
    - A PDF of it is also in Canvas' Files (named [bitcoin-whitepaper.pdf](https://canvas.its.virginia.edu/courses/93490/files?preview=6015859))
- Upcoming HWs (not yet ready!)
  - HW P2 (due Tue, Feb 6th) will be on ECDSA
  - HW P3 (due Tue, Feb 13th) will be on Bitcoin's blockchain
  - HW P4 (due Tue, Feb 20th) will be on Bitcoin scripting
- ENGR 1501: Cryptocurrency Mining class this semester! 1 credit; see the [flyer](https://www.cs.virginia.edu/~asb2t/engr1501-ccmining-flyer.pdf) and the [syllabus](https://www.cs.virginia.edu/~asb2t/engr1501-ccmining-syllabus.pdf)
- Office hours start next week
  - All are currently TBA; the times will be posted this weekend, but the locations may not be ready until Monday
  - This all will be on the [Canvas landing page](https://canvas.its.virginia.edu/courses/93490)
- Today we will start on the [Cryptocurrency overview](../slides/overview.html#/) slide set