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 0x8cc40274e4c6aa809dd000b7bd850a1180b8b182f6b934d65cf352dc096d48c9. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/108f489d-ee1b-473d-9218-1ad66fbe3083.json and https://artists.proofprofile.net/proofs/artist/108f489d-ee1b-473d-9218-1ad66fbe3083.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
세상에서 가장 아름다운 영화 속 팝송 기타 연주곡 (Soundtrack)