A source of truth for smart contracts

Get cryptographically signed real world events. Use factsigner as a source of truth for digital systems like smart contracts.

Want to make a bet on tomorrows bitcoin price?

  1. Ask factsigner to sign a future event.
  2. Wait for the event to occur and get a signed preliminary result
  3. After further validation the final result is signed and pushed into the blockchain.

Have a look a our most recent events.

Want to see an example smart contract with javascript tests? Have a look at our example code at github.