CRIBPOET lets you prove you knew about information before some point in time by posting a Carrot transaction from your wallet to the Monero blockchain.
- Carrot - Uses the Carrot addressing protocol, so any wallet with the new Carrot key hierarchy will have the ability to support this scheme by default
- Indistinguishable - Uses steganography to look like a regular old 2-out transaction
- Blinded - The commitment to the information contains a blinding factor that makes it impossible to guess the message from the commitment
- Recoverable - The blinding factor is recoverable through normal Carrot balance recovery, which means you don't have to keep track of any ephemeral information.