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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4280f79d6e0cee321f35f21a54f85b2d5990a665b4f36ac0a73945c0d9ca046. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd9f1937-e8b1-4b25-8888-e856806b7f91.json and https://artists.proofprofile.net/proofs/artist/cd9f1937-e8b1-4b25-8888-e856806b7f91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bussin / Blow My Smoke (Bukez Finezt Remix)