The "To Keep Up" Wiki

This is a work in progress.

How are Bitcoin and blockchain related? Bitcoin uses blockchain. Blockchain is used for Bitcoin, and much, much more. (Just like your spreadsheet program may be used to track your expenses and the books you have checked out of the library, blockchain is and can be used for many things.)
This talk gives a simplistic overview of blockchain.

1. Use of Blockchain for ledgers
2. Hashing basics
3. Public Key Infrastructure basics
4. Block contents
5. Add new block
6. Need for Mining

(This section has material copied directly from https://www.ibm.com/blockchain/what-is-blockchain)

• As each transaction occurs – and the parties agree to its details – it’s encoded into a block of digital data and uniquely signed or identified.
• Each block is connected to the one before and after it — creating an irreversible, immutable chain.
• Blocks are chained together, preventing any block from being altered or a block being inserted between two existing blocks.

Difference between blockchain and Bitcoin

• Bitcoin: unregulated, digital currency.
• Blockchain: is used by Bitcoin (and blockchain used for many other things)