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 0xbccbc8f01e837b7bfb9e78b68bf3cf1e5a4615d2b3f2bd88f89ffaa8e89e85d9. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15db3eba-47c6-465e-88c9-fe9511d6ea04.json and https://artists.proofprofile.net/proofs/artist/15db3eba-47c6-465e-88c9-fe9511d6ea04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).