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 0xe2370ecfcf48d262f55be5baaea5ed8cc3c6e9c867b39ee1925191548d1571f9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed8e52d8-d752-471e-9a60-c76cdecefbcd.json and https://artists.proofprofile.net/proofs/artist/ed8e52d8-d752-471e-9a60-c76cdecefbcd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Trainerhose feat. EffE, Semantik & Sulaya