1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x37f3a95b8f379452dbdfb4fe5472b6dc25cb784b42a5601a78778ca5234de6b0. 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/2cc2c1d7-6e60-4afb-aba6-cee6f302ed3a.json and https://artists.proofprofile.net/proofs/artist/2cc2c1d7-6e60-4afb-aba6-cee6f302ed3a.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 → block OTSBitcoinBlock must exist at that height 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 0x2684f42ba4bca784785d49b23b8f98aa54e3d61a5bd31b8108ae16e1c6e428ef. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ES71G2144143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2998034c2dbe1367813606f91e4f5bc5b19ab2a05f0b260ffbe807725a7e5adc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:20:18Z), 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/ES71G2144144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d2fa754b72a679d64a884816652d28667bf245c633c3e53dc63916ab2e6650. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES71G2144145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2fa600899446bf5a3c4f367d35b7305ce90acaa52aa6257e81bb58a215f846. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES71G2144147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82babcb78b29367ea3f98bdc91429e6556765c9d5037c8cebc7135c869769c57. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES71G2144146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965a60ddd18a2c39021f129d5784953a03cff95be8d680937e55380dbc617b2f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES71G2144148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62df641daed32425951085fec75d76befd46be225f6ac9295603ac8430b2edd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G2206908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb840a712b489140f46885159b5c6aaaba9b6eca2b5a12596aa9721c156cb6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G2219410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03a5e7b5f4a6d7f20d5411ea7a3bfffaf0256dca8a465bd111bbcf2d3d3bb63. 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/ES71G2223761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9709bb0d3fe71c85a0dd198698ccd3102919ea3e0ad5e7ddb4a23c1344734c55. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2223762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2441010e6192f887e7e9072fea2420e1bbc663ac5b230d9ef87d8e82958b76d. 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/ES71G2223763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c8cf5b71da50d908a653569b0b9defe6d262cbbdeec4f2eb30f82890205feb. 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/ES71G2223765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeea297337c31b3eb15dd20fabda5b6e164da8954b4906df8800fd122335665. 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/ES71G2223764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf58e62c5acc383631925dbd1fdcbaa84de1d07bf2ab2504f6cf7a28927eaaa. 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/ES71G2223767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e37845f423b64534d81b9d1d96073c533a8df8b9ed1a7b1ae8184b718c5cd6e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES71G2223766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05d0b52b4ae040ba02ada6ade6aaadc55f62b70f1490627fb7d32c8829e8c99. 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/ES71G2233895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1303b98bc7f46dff5523e2e9c62a65d93975fb29292f0863ad8aa3a94ff80815. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2233900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cc4bd44c0b9257e4c316bbaeace3315527cdc0a00e592c811f9c186eb4f03d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2233901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d65beba614e971e9fb967836d48ae8e66f744cbd86b2db675672d2989740ab. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES71G2233902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838fa9214d2d5362eaff72a15628e528acb9c7bc6a657b0eb69ddd668ccca5ee. 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/ES71G2308033.
Canciones de Cuna Latinoamericanas, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d22430d63cd1ff33b4e1272505e49dcf8c6fd2ce2affd148dc4ed21ce4a7c5. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ES71G2232287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d557bb5962fb26bf6f67afbcdd618af62f3c900aea9144615dce49839d83b6a. 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/ES71G2232288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f053fab97e8c77f78faed34162a97a7479ef070ca45dcb4955e9b158e794b63. 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/ES71G2232289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9084cff3791a9f1d1538c777ce8b03492ac1402019563ff6b03617dae88d2c9b. 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/ES71G2233915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d220e586e3665dfd1da0d438f6158f3cf543b425b853e367c5dd4c2ab3b229d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES71G2233917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337e3fd5855c3ff28e29b27efb9c99fb53335465d5e0894ab40f81b648660032. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2233918.