This is by far the best video to learn how proof of work blockchains like BitCoin work under the hood: https://www.youtube.com/watch?v=_160oMzblY8
In the part 2 video he explains in more depth how transactions and signatures work.
What the chain says
- Block
- 640 045
- Time
- 2020-06-19T12:04:18Z
- Signer
- 18LKokwnerDApeoM2kAEL5QKc2nmDMe316
- App
- twetch
- Type
- post
- Content type
- text/plain
- Name in tx
- twetch#1927
Fields the transaction did not carry are omitted. Open the payload to see the bytes as stored.
Signed by
18LKokwnerDApeoM2kAEL5QKc2nmDMe316 Verified