the.com/blockchain
A spreadsheet that copied itself onto a thousand computers so nobody can lie about it.
means A shared, tamper-evident ledger where records are bundled into linked blocks that no single party controls.
from Coined in pieces by Bitcoin's pseudonymous Satoshi Nakamoto in 2008; the words block and chain only fused into one term years later.
Genesis lineBitcoin's first block quotes a 2009 bank-bailout headline.
Tamper mathChanging one block rewrites every block after it.
Identity gapSatoshi Nakamoto remains gloriously unidentified.