Verify a receipt

Every paid Second Opinion verdict carries an Ed25519 receipt: a signature over the canonical JSON of the response. Paste a verdict below and this page checks the signature against our published key — entirely in your browser. Nothing you paste leaves this page. Change a single character and the seal breaks.

The sample is a real verdict bought for $0.03 on 29 Jul 2026 (settled on Algorand). The skeptic judged its claim inconclusive — unverifiable as stated — and the receipt proves that honest answer is exactly what the engine returned. Receipts make verdicts provable later: what was asked is your business, what we answered is on the record.

Verify offline instead: fetch the key, canonicalize the response minus receipt (keys sorted at every depth, no whitespace, UTF-8), and check with any Ed25519 library — spec in the key document.