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 0x4c2de6cd568fb20a0ace05b50306aa8f4e0466eb34a72ff443973fd93f358ac2. 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/9cd83cc8-1732-49bf-9630-82480ff25662.json and https://artists.proofprofile.net/proofs/artist/9cd83cc8-1732-49bf-9630-82480ff25662.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 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 0xd986ae84f055209aa90a0cbf2dfc2dda8c9d33a154608af306edd017a27c2f43. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/IND292215283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fc672c7d5911de4e6c9434dbab1717f1b17eb06877612f50b7f7bc4b56057d. 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/IND292218367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980c14e503f3363edff38ce86623b55b9534d16b9ea4251536d9c3eb2e96d641. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/IND292218162.
Easy Take It Easy (From "Maryade Prashne")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200a036fbb2f1afa504e8ed18ce31d374972d225ecacabc74979b000b2e96f96. 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/IND292217700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45de4b36af61f03bc9f9d8d5e1a51730b5ad1a8a9963d6d0957db8840b923fcd. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/IND292215324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ac0dcf223849a9d054c562884c94ce841fec18adecc39531bef0b94b1b281c. 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/IND292213771.
Bachelor Party Announcement Theme (From "Bachelor Party")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98dcbfa3d2113a5e1d2f08249cce1eb0be1e02cd7f640c90d7f46684e1f40b3. 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/INS5D2102120.
Demo Piece (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc96bbc81d0d0d185132271dc282df88b927254ed59c6ecde373cdfa9b83cd. 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/IND291819588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23014d236a798e89129b7bc00c84e1cdf0b80145c57ddf066a3c00bbd7e77864. 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/IND291820561.
Nanna Prakara (Original Motion Picture Soundtrack)
Nanna Prakara - Title Track (From "Nanna Prakara")
Hoo Nage Aamanthriside (From "Nanna Prakara")
Huliraaya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47785472c1357b7623c4b501c9bed3aa2497be6d2c45ab6d8eba350177339e7e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/INM1E1700008.
Mangata (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5993a13e031bd3455e413276369219a95ae14da8805defa706656ad348c965d2. 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/IND292212535.
Naa Ninage Nee Nanage (From "Maryade Prashne")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31a5e3acdce5fb53b5cb2ddd4c0cac9d13438972efe1989a708b4f9b930f4c8. 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/IND292217922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb484ab482e6f6978494cf5a430f2b531743fd7f83145b6bbc4dc5e5a8d119f36. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/IND292000397.
Omini (Original Motion Picture Soundtrack)