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 0x06bf095c5be498acc31d9f29055ada1dbf917a1c1f051ac0b0b6f855359d9aa9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5412f3ea-f7a7-4fff-9f5d-732809243799.json and https://artists.proofprofile.net/proofs/artist/5412f3ea-f7a7-4fff-9f5d-732809243799.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ayalum Njanum Thammil (Original Motion Picture Soundtrack)
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 0xc3ae338f378dea4032d33e98717356c78fa0823b8eefa4077c3141c6c539b9dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/INE130302567.
Januvariyil (From "Ayalum Njanum Thammil")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae338f378dea4032d33e98717356c78fa0823b8eefa4077c3141c6c539b9dd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INE130302567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6674a0d01d7c59add4788e0d23ad4ef3b8d9d28e85245af7c8c0bedac8193a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INF040500682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9579799ca903179244a7910d1877d18bd7d98f7a29b5dbc70aed0a9d8092be. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USGAC1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6674a0d01d7c59add4788e0d23ad4ef3b8d9d28e85245af7c8c0bedac8193a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/INF040500682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6674a0d01d7c59add4788e0d23ad4ef3b8d9d28e85245af7c8c0bedac8193a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INF040500682.
Hits of Unnikrishnan and Harish Ragavendra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6674a0d01d7c59add4788e0d23ad4ef3b8d9d28e85245af7c8c0bedac8193a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/INF040500682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae338f378dea4032d33e98717356c78fa0823b8eefa4077c3141c6c539b9dd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INE130302567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae338f378dea4032d33e98717356c78fa0823b8eefa4077c3141c6c539b9dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/INE130302567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae338f378dea4032d33e98717356c78fa0823b8eefa4077c3141c6c539b9dd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INE130302567.