Public ledger
Audit any Prism recommendation, cryptographically.
Every recommendation Prism’s engine emits is signed at the moment of capture and chained into a public ledger. Each day’s Merkle root is anchored in a public GitHub Gist whose commit timestamp comes from GitHub’s clock, not ours. This page lets you verify the chain end-to-end — signature, inclusion proof, root signature, external timestamp — without contacting our servers for anything except the public data itself.
Verify a recommendation
Paste a Prism row id (format: {user-id}-{TICKER}-{YYYY-MM-DD}) and the verifier will run the five-step protocol below. Every check happens locally in your browser.
Daily anchor history
Every UTC day, every signed commitment from that day is hashed into a Merkle tree, the root is signed, and the result is published to a public GitHub Gist as a third-party witness.