TIL Proof of Existence, The original Blockchain notary service, offering instant, anonymous, distributed, and secure proof of existence for any document, agreement, or contract. It’s open sourced: repo.

Read Build & run a full Bitcoin node with a Raspberry Pi 5.

Read Bitcoin: A Peer-to-Peer Electronic Cash System aka Satoshi’s whitepaper.

TIL what is What Is a Paper Wallet. bitaddress.org is good example of it.

Read How to Generate a Bitcoin Address - Step by Step, played with generating Bitcoin addresses manually without wallet apps.

TIL what is a vanity Bitcoin address, these are addresses like: 1NiNja1bUmhSoTXozBRBEtR8LeF9TGbZBN. Played with vanitygen-plusplus, a vanity address generator for BTC, ETH, LTC, TRX and generated some for myself.