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 0x7f4f6c7020e2ab41ad5be0b71d6fa4596ea904ce34e375a29efbe50050df1b72. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c74bdc4d-e84a-446d-a076-5516f2eb5e7b.json and https://artists.proofprofile.net/proofs/artist/c74bdc4d-e84a-446d-a076-5516f2eb5e7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x19676556aa8f1b070400c76fff23476fb0ca3bcb51e532c20f631980774ae39c. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/QZTB72200272.
Kaarkuzhal Kadavaiye (Recreated version)
Ae Maanpuru Mangaiyae (Recreated version)
Ae Maanpuru Mangaiyae - Recreated version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d65c48fbfe8782c915e4633e7075895dd2e5e433c2419f77e52fe9b0bbbf4a3. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZDA52312710.
Enthe Innum Vanneela (Recreated version)
Enthe Innum Vanneela - Recreated version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fd033d42a917557253955898da8af9e11a53c18830197bd77a2321a1545843. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:07Z), 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/QZDA62323955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fc270c9537a5fe19dbe3bf4079a6a04e84c1fe8c0752448757d05d26314de2. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZES62359616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356cd88f55cbb34cc05fa949c87bc6a8135b156970d448bdf1c89cb3eb643c77. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZTB52277141.