[youtube https://www.youtube.com/watch?v=fjYMaQ7NPSc&w=640&h=360]
Capitalizations Index – B ∞/21M
[youtube https://www.youtube.com/watch?v=fjYMaQ7NPSc&w=640&h=360]
Blockchain is bitcoin’s public ledger: a shared, tamper‑resistant record of all transactions. It lets participants verify transfers without banks, using consensus across a distributed network.