Blockchain
5 filmsComing soonWhat a blockchain is, read end to end on Bitcoin: a list of payments, written in blocks, chained so the past cannot quietly change, and copied on thousands of computers nobody owns.
Everyone has been told that something is 'on the blockchain', and almost nobody has been shown the machine. One part at a time, from a single payment to a ledger nobody owns, in plain words, with no price in sight.
What a blockchain is, read end to end on Bitcoin: a list of payments, written in blocks, chained so the past cannot quietly change, and copied on thousands of computers nobody owns.
How thousands of strangers agree on one ledger without a bank: who sent a payment, who writes the next block, why nobody can spend twice, what keeps the pace, why it burns electricity, and the design that replaced electricity with money at risk.
What runs on a blockchain beyond payments: programs every node runs, who pays for them, what a token or an NFT really is, how a stablecoin keeps its dollar, how a swap happens with no company in between, and why the chain cannot see the world.
What happens when the design meets the world: what a wallet holds, what an exchange holds for you, how payments get faster, what a central bank's digital money is, and when a blockchain is the wrong tool.