Bitcoin Developer Basics 01: Transactions, Scripts + SegWit

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niftynei Base58⛓️?

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1 - Introduction

1 - Welcome to Base58s Intro to Bitcoin Transactions.mp4

02:05

2 - Prerequisites and Additional Resources.html

3 - OPTIONAL Encodings A Primer.html

4 - OPTIONAL Endianness A Primer.mp4

19:42

2 - Housekeeping

1 - Looking up TXs in a Block Explorer.html

5 - Niftys Bitcoin Coding Environment.mp4

02:49

6 - Different Bitcoin Networks and Address Types.mp4

08:00

7 - How to Use a Block Explorer.mp4

05:36

3 - Anatomy of a Bitcoin Transaction

0 - Calculate Input Totals Output Totals and Transaction Fees.html

0 - Parsing A Larger Bitcoin Transaction.html

0 - Parsing a Bitcoin Transaction by Hand.html

2 - Label Fields in a Bitcoin Transaction.html

3 - Using the Bitcoincli.html

8 - Transactions in the Bitcoin Protocol.mp4

29:02

8 - section3anatomyofabitcointxv2.txt

9 - Summary Notes Intro to Bitcoin Transactions Part 1.html

10 - Parsing Our First Bitcoin Transaction.mp4

11:44

10 - section3anatomyofabitcointx.txt

11 - Note on the Following Video.html

12 - Parsing a Segwit Bitcoin Transaction.mp4

15:11

12 - section3anatomyofabitcointxv2.txt

13 - Why 1BTC 100000000 Satoshis.mp4

03:13

13 - section3anatomyofabitcointxv2.txt

14 - Types of Fields in Bitcoin Transactions.mp4

08:24

14 - section3anatomyofabitcointx.txt

15 - Input and Output Amounts.mp4

20:21

15 - section3anatomyofabitcointx.txt

16 - The UTXO Set Unspent Transaction Outputs.mp4

12:47

16 - section3anatomyofabitcointx.txt

17 - TX Fees and Coinbase TXs.mp4

13:54

17 - section3anatomyofabitcointx.txt

18 - Notes Transaction Fees and Coinbase TXs.html

19 - Replit for Bitcoin Regtesting.mp4

03:25

20 - Block Rewards and Burning Bitcoin.mp4

02:31

20 - section3anatomyofabitcointx.txt

4 - Formatting and Parsing Bitcoin Transactions

0 - Calculating TXIDs of Raw Bitcoin Transactions.html

0 - Parsing Bitcoin Transactions with 1 Byte Compact Field Sizes.html

4 - Address Types on Different Bitcoin Networks.html

5 - Field Sizes.html

21 - Section 3 Recap and Next Steps.mp4

07:29

21 - s4niftynotes.txt

22 - Updated Skeleton for Parsing Bitcoin Transactions.html

23 - Creating a New Transaction by Hand.mp4

36:45

23 - s4niftynotes.txt

24 - Field Sizes and Memory.html

25 - Compact Field Sizes.mp4

13:45

25 - s4niftynotes2.txt

26 - Compact Field Sizes Notes and Python Code.html

27 - Hashing vs Cryptographic Hashes.mp4

10:48

28 - TXIDs and Cryptographic Hash Functions.mp4

11:48

28 - s4niftynotes2.txt

29 - Cryptographic Hash Functions.html

30 - Duplicate TXIDs.mp4

06:36

30 - s4niftynotes3.txt

31 - TXID Bitcoin Improvement Proposals.mp4

12:41

32 - The Empty Transaction and Calculating Fees.mp4

14:16

32 - s4niftynotes.txt

5 - Intro to Script Locking and Unlocking Bitcoin

0 - Decoding Bitcoin Script.html

6 - ScriptSigs and ScriptPubKeys.html

7 - Stack Evaluation of Bitcoin Scripts.html

8 - What does it mean to OWN Bitcoin.html

33 - Bitcoin TXs Recap and Next Steps.mp4

05:38

34 - The Yin and Yang of Bitcoin Script.mp4

08:25

35 - Writing Bitcoin Script Data and OpCodes.mp4

07:46

36 - Summary Notes Intro to Script.html

37 - Stack Evaluation of Bitcoin Script.mp4

23:05

38 - So How Does Script Keep Our Bitcoin Safe.mp4

02:18

39 - Locking to a Custom Script.mp4

10:18

40 - Standard Scripts Pay to Script Hash.mp4

16:53

41 - Unlocking from the Pay to Script Hash.mp4

07:56

6 - Standard Bitcoin Scripts Pay to Script Hash

0 - Converting Custom Scripts to Pay to Script Hash Addresses.html

9 - P2SH Knowledge Check.html

42 - Pay to Script Hash Recap.mp4

15:13

43 - Interpreting a P2SH Script.mp4

22:19

44 - Takeaways and Tradeoffs with P2SH.mp4

13:58

45 - Legacy Bitcoin Addresses and Base58 Encodings.mp4

19:46

46 - When Do We Use P2SH Addresses.mp4

04:46

47 - ScriptHash Security and P2SHs in the Wild.mp4

08:10

48 - REGTEST HW1 Pay to Script Hash.html

49 - SOLUTION VIDEO Pay to Script Hash.mp4

13:53

7 - Enter Segwit

10 - TX Malleability.html

50 - Segregated Witness Overview.mp4

15:06

51 - Segwit Differences TXIDs and vBytes.mp4

16:23

52 - Block Weight vs Block Size.mp4

06:56

53 - TX Malleability or Why Lightning Required Segwit.mp4

16:23

54 - Coverting our P2SH to a Segwit TX Pay to WITNESS Script Hash.mp4

23:14

55 - Segwit Marker and Flag.mp4

09:10

56 - Updated Parsed Bitcoin Transaction Skeleton.html

57 - REGTEST EXERCISE Pay to Witness Script Hash.html

58 - SOLUTION VIDEO Pay to Witness Script Hash.mp4

15:05

8 - Script Hashes and Segwit

59 - Segwit Recap.mp4

22:23

60 - Making a new P2WSH Script.mp4

16:45

61 - Bech32 Addresses bc1q Segwit v0.mp4

11:22

62 - Finishing the New P2WSH Transaction.mp4

05:27

63 - Backwards Compatible Segwit aka Nested Segwit.mp4

08:33

64 - Unlocking From our Nested Segwit Address.mp4

12:49

65 - Fun Facts about Segwit and Bech32.mp4

05:14

66 - REGTEST EXERCISE Nested Segwit P2SHP2WSH.html

67 - SOLUTION VIDEO Nested Segwit.mp4

13:29

9 - Bitcoin Transactions Class Wrapup

68 - Recap of What Weve Learned and Built.mp4

05:09

68 - Testnet Transaction with all 3 script types P2SH P2WSH P2SHP2WSH.txt

69 - Notes Script Hash 3 Ways on Testnet P2SH P2WSH Nested Segwit.html

70 - Next Steps on Your Path to Bitcoin Wizardry.mp4

02:17

71 - Thank You.html

Description

Start your bitcoin dev journey with bitcoin transactions, scripts, and SegWit

What You'll Learn?

Basic intro to encodings, endianness, and bitcoin's specific base58 encoding
Learn the components of a bitcoin transaction
How to parse a bitcoin transaction from bytes
Intro to bitcoin Script, including writing your own bitcoin locking scripts
How to write standard bitcoin locking scripts (P2SH)
How SegWit changed the basic bitcoin transaction
The standard SegWit locking script: P2WSH
How to make legacy compatible SegWit scripts: P2SH-P2WSH

Who is this for?

Developers who want to learn about blockchain protocols

Bitcoiners that want to really understand how transactions work

Beginning developers that are interested in protocol design

Cryptocurrency curious devs!

Protocol designers that want an in-depth course on bitcoin transaction design decisions

Cryptographers that want an engineer-focused understanding of bitcoin transactions

What You Need to Know?

This course is open to everyone, but it is in-depth bitcoin transaction protocol content.

Developers that have experience with byte-formats, encodings, and bitcoin will likely find it more approachable

More details

Description
So you've heard about bitcoin? Ever wondered what's going on with the data in a transaction, or how bitcoin gets locked up and transferred from one holder to another? Are you a programmer, developer, or engineer? This course is for you! We'll get you programming your first bitcoin transactions in no time.

This course by Base58 instructor niftynei, will take you on a deep dive of the fields, bytes, and scripts that make up the bitcoin blockchain data. In an software engineer focused manner, we'll go over everything you need to know to build your own bitcoin transaction parser, write your very own custom bitcoin locking scripts, and adapt your transactions to the modern SegWit format. This class will get you started in bitcoin development. Go farther, faster with Base58!

Step 1: Intro to bitcoin transactions
We'll start off learning about what a bitcoin transaction is. Specifically, what fields do they contain? We learn how to calculate a transaction id and what transaction fees are, and how are they calculated. Finally, we'll talk about coinbases and block rewards.

Topics: transaction fields, endianness, transaction ids, fees + transaction weights, coinbases
Step 2: Enter Script
In week two we start talking about Bitcoin's native "programming language": Script! We'll write our own script this week (and learn about hashes and preimages). Once we've written a script we'll try locking some bitcoins up to it, as well as unlocking them.

Topics: Script, standard scripts, P2SH, opcodes

Step 3: Transacting with SegWit
Now that we've seen how transactions are constructed and built, we'll introduce the bitcoin omnibus update bill, the SegWit soft-fork. SegWit impacted the structure of a transaction and its fee calculations, so we'll dive into how these updates work and two of the 'new' SegWit script types: P2WSH and P2SH-P2WSH.

Topics: SegWit! P2WSH, P2SH-P2WSH
Who this course is for:
Developers who want to learn about blockchain protocols
Bitcoiners that want to really understand how transactions work
Beginning developers that are interested in protocol design
Cryptocurrency curious devs!
Protocol designers that want an in-depth course on bitcoin transaction design decisions
Cryptographers that want an engineer-focused understanding of bitcoin transactions

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niftynei Base58⛓️?

Instructor's Courses

niftynei is a lightning protocol engineer at Blockstream and the lead instructor and curriculum writer at Base58, the premier bitcoin protocol school. With over a decade of experience in writing and engineering software applications, she's excited to bring her 4 years of experience working in bitcoin to curious learners and software engineers across the globe.

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