Part 1: money and keys
Lessons 1 to 4: what money does, the shared ledger, keys and what a wallet holds.
Lessons 1 to 4
01 money
What money has to do
Why people agree on money, what makes it hard to fake and who keeps the record of who owns what.
02 ledger
One record, many copies
How thousands of computers keep the same ledger of payments without a bank in the middle.
03 keys
Keys and signatures
A private key signs a payment; the public key lets anyone check the signature without seeing the secret.
04 wallet
What a wallet holds
Wallets hold keys, not coins. Phone, computer and hardware wallets, and what each one protects you from.
Try at home
- Ask three people what makes money money, and compare the answers
- Find the word “ledger” in your bank statement's small print
Next evening class: Tue 14 Oct, 18:30, Springfield library (sample).
Start with lesson 1 tonight
Lesson 1 takes twenty minutes online and costs nothing. When you are ready, book a seat at the evening course.