1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b0a1321c67b53247743f0013bdd86ff5cffd9ead53ddd70c33c6133ac6feb6. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b98fa200-afaf-472c-8a77-d5b35856719d.json and https://artists.proofprofile.net/proofs/artist/b98fa200-afaf-472c-8a77-d5b35856719d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dancing Down The City - Instrumental Mix