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 0xe73809d7e5ee6ec27bf960fd991381a7c1f6d1dbb78f6723f586290444b99eea. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aed8982c-31f3-45fa-9bf9-c8591bd099bc.json and https://artists.proofprofile.net/proofs/artist/aed8982c-31f3-45fa-9bf9-c8591bd099bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ「FARMAGIA(ファーマギア)」エンディングテーマ miss-dystopia 先行配信
TVアニメ「FARMAGIA(ファーマギア)」エンディングテーマ miss-dystopia
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427ce662099d746d3f56d7b5e89c0c8533d3f588e4eeab3c7068f2c37260b14d. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD602500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2fb2721c3086664a20d7bd63b8be2a18b336148f8478b75ddfbf045f9d94b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD602500002.