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 0x76aca22a074d5bd23d4421cacb29902bd27aad3f0f4f47f3abcc5f2944e37e85. 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/4f632ff0-7907-431a-bee8-643117873b0c.json and https://artists.proofprofile.net/proofs/artist/4f632ff0-7907-431a-bee8-643117873b0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johnny Johnny (From "It's Entertainment")
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 0x65bb2d2433dd48152b87f6bf5a93054314aabae1d158d5b9ea5d6a1405c55ee1. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/INY091900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7148595fb746f672b10af8c3e57d77a14876c7dfe39409a05915f8295be89cf5. 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/INU251901653.
Ruka Hoon Duet (feat. Shalmali Kholgade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d1dc517c8a54996ac5b84e5db114c31c0c5cff9e3704839fda75d75ef1c93f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INS171903559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cb2ceac1687089c5ffe1f706d0137ffb9201be18a8b26c17e549c2597efb7d. 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/INU251900463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fbbfea2d985b05f1b5eda3a5b1db30d43d021c9e94fcbd014be7d9851e83ad. 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/DGA072147827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015344b3884a247e3395d7cf6a80edff916759b7f31753f05888705673b427b0. 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/INS181801821.
Munjya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910b2795277cf2060406b70b8cd3d8bfab060b0a39ce3189c82e863f8b563347. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INZ031415348.
Rang Barse Bash - The Ultimate Holi Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55422cb92edb20a5b1a583ecc8e6f6456fa94a42e874ff1cc13d055a1ef23e65. 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/INS182401004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c7a158113fbb5949fe7bdb85958f201356525f977322462f8bcb0a6ec5860. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/INS181701573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015344b3884a247e3395d7cf6a80edff916759b7f31753f05888705673b427b0. 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/INS181801821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75700e0b1d98e70e11bec0c805a557ce329331b1c71d357640c4b448fa4afe28. 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/INY091700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988569e719ab381199dc5e170974972ca92b9d90fb7e7bd27c90f21a0c90cdcc. 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/INY091300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59feb12fedc85238c0627ca5c39d7c6af43b38639191daef83d0f49971651b2a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/INY092300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75700e0b1d98e70e11bec0c805a557ce329331b1c71d357640c4b448fa4afe28. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INY091700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0a21827302f2c14f2e64f9f794ed0ee922f4a199a46cdaf318ff5ebe086883. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GBSGZ1501202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb3037b5e80af167c535a49f241474c6bf05edd798ad7ee770d3276166ca562. 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/INZ031404588.
ABCD - Any Body Can Dance (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af4cb97d303c8ea3f9779cdeef93624d4c38146d579c3519b73fbf2b5ce2f2a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INU151200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89b69f55f68da5f5eb8e8fc8d86334674cf4adc96ab6cae6709a310c964b6b. 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/INU151200222.
Go Goa Gone (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a3a0c4efbc53e1a55e046af1d6e2d0ae620d21131374cb4295915a1f7c3b58. 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/INS171300264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4147360b1cd31d0efef77d926e1c2f3bfb041a603faebd9b80d9418bcb4cc872. 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/INS172300363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8c76b8bf6c2d0a46ca3d17fdd5df868090dbef0438ef39d85bfc2f53f8f6be. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/INS181102923.