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 0xc989cfa0be6b86f98e6641cebde692e5023026de12315c00bcb09cc3a634baae. 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/f9960b85-1f0e-4a4a-a99b-e36c6f356338.json and https://artists.proofprofile.net/proofs/artist/f9960b85-1f0e-4a4a-a99b-e36c6f356338.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clinton Magalo (From Kadhal Azhivathilai)
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 0x08af1b5de5155b7e369b0525c3bd2d7d86e8defb8b4c160187f28c969e200422. 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/INF040200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77cd120f847ed8e99ff4c6d8c557864bdbd054287f42730258abf0c05a9a088. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/INT201601207.
En Aaloda Seruppa Kaanom (Original Motion Picture Soundtrack)
Kalakku Machaan (From "Sakka Podu Podu Raja")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffcc966e29e21bae2daf403ad10328cdadeef5faa0373b61734231cd18bdfd9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/INS171702945.
Kadhal Devathai (From "Sakka Podu Podu Raja")
Demonetization Anthem (From "Thatrom Thookrom")
Sakka Podu Podu Raja (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110fcbbabff247f2d534549d4f2d3aee6e3738d62e953f06a8615cd59a3bd332. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/INS171703441.
Red Cardu (From "Vantha Rajavathaan Varuven") - Single
Dei Mamae (From "Ivan Than Uthaman") - Single
Irumbu Manithan (Original Motion Picture Soundtrack)
Kadhal Azhivathilai (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be5359d5f15497996104e9f33ddfe3bf3cfc5e2fe855f67d644015029c203b. 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/INF040200446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f814fa5eb50fdd8f277f1a0dc2a03cc6fc8bd47f5fe06757874241d893bb623. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INA091313978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08af1b5de5155b7e369b0525c3bd2d7d86e8defb8b4c160187f28c969e200422. 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/INF040200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a02df0c2edbe85547df3ea09762e9df561a328b1c523e5c512cd1b2d1e3c8bd. 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/INF040200448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c2928c50eb77da69502283050f1f64845bc56e7b109991bcd45b1545c3e57. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS171100636.
Maanaadu (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656c6d754fba4e0af42402287a90e30437ce946086e9e47e7c57e1efbc377fab. 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/FRX872166970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f18c8f5bb184ea65d230f2d9b2f96a3955fc735fc180094af9077a0b674f2. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/INS171000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0dd0d5edeee685cbe5d7308a0db3d878d8466c8763349bb013aeb547ef43ed. 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/INS171100465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85f18c8f5bb184ea65d230f2d9b2f96a3955fc735fc180094af9077a0b674f2. 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/INS171000205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d0a5c0984bdd71ee6da1344e9b1b03295b87ab208f3bbad0086abef6a94507. 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/INF040300562.