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 0x26bb3a364197bed99601243b7791718e138b27705da6108b6c9621d406bb67cd. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/263d8078-8ec8-42f0-97ec-1bbd05bbad46.json and https://artists.proofprofile.net/proofs/artist/263d8078-8ec8-42f0-97ec-1bbd05bbad46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
구해줘! 감대리 (Original Television Soundtrack) - 뭐가 그리 잘나셨어요