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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bbde0cfef5768ee38613121231682e1b9770c6cad9486ef5d93d9663f16c7e. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/812b7e02-fbfa-48a1-b36a-ca248a5ab87e.json and https://artists.proofprofile.net/proofs/artist/812b7e02-fbfa-48a1-b36a-ca248a5ab87e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bewafa Na Chopde Janu Pehlu Taru Naam (Original)
Hato Dilno Raja Banyo Chhu Yamraja (Original)
Chadyo Maana Najre To Badhu Pachu Aapi Jais (Original)
Matlabi Duniya Joje Mari Mata (Original)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a589da3e18d5b3e86921fdc441dbbf47d2dee11adbb6901d80d2d1ac521ef22. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INN242314309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb782bbb233e06020e8eb7e66cd56c67966309b8df5299a508bd9d6461d3b781c. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/INN242212647.
Bhaibandhi Mard Matani Mard Dostoni Karay
Masani Meldi Aeno Power Batave (Dakla Remix)
Lal Lal Chundadi Mari Dasha Maa Mate Layo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd8fa69456c7a6caccdacf9b09411d300b07810a6940e72be6a414bd44c29e9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/INA9L2400029.
Koi Na Kare Aevu Mari Khunkhar Meldi Kare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99ca95d50df7a808d67964f6ba5de981a8322367f38936af88a4346b5dc1d8f. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/IND862408781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f98cb2c568b4e49ffe05d3292a5539f6c96e5e4e91994cc6102e8a42d4167e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/INA9L2500001.