1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x752d3866bc718c85e29f067fda1b63f5a2bb2ea4a93763e53b27abe50a2bc289. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6f95cc3-9231-4d57-b0fe-c9af26723672.json and https://artists.proofprofile.net/proofs/artist/a6f95cc3-9231-4d57-b0fe-c9af26723672.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Всё будет ок (Музыка со вкусом 1968 Live)