What Is a Blockchain?
Where it came from, what it does, and how you make one
Apr 23, 2018 · 6 min read
What is it?
A public¹, permanent², append-only³ distributed⁴ ledger⁵.
- Though some blockchains require permission to access, “open” blockchains like those underlying Bitcoin and Ethereum are accessible to anyone, meaning the database is public information
