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 0x7694ecefa0a1c4f761b5bd4d8abd575efd2fafbd9e6cb9efa8c3c6632f85d058. 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/f0d12c7b-c4c1-4d20-a12d-21f384e5eae1.json and https://artists.proofprofile.net/proofs/artist/f0d12c7b-c4c1-4d20-a12d-21f384e5eae1.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 0x6fa73e8fea6d09fbd1056a141ba99665e8559938aec0bf7cba1fec20b7bb8703. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARF061900382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498eef8c61484388033732a6850d60c79c661237571ddc5ad2a621a6d0dfddaa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARF062000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85509fb2aabc913b32035b1e8c8343e5fbcae7684c5a256052ccc7e12d139f9c. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARF062000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188271f86d57d68e8dc19f10dfb779cbcfea2e13f3bb1656fa19755a5a7c075b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/ARF062000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ab6e33e16cdc8f9ba1cb5a7f5bf4c0d8c1ee3cc4eb4ce10a94046d9c152226. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ARF062000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb19b549727ceef0bbe2fafd317a280e26c58e5f4cc2719649a38b1b38bc898. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/ARF062000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80061fbb86657fe01077cc425bc83cff74435657f5fca467adcea959b8eb4f5c. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/ARF062000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58463d40b4cd2102303d1076ee6871a9af6954f07078bc1f45f14b6cefada8af. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/ARF062100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e38cb8fb946e24b16492fa0b94eb8855340474c50daf282e67337b088c03177. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ARF062100500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c5d3988f18dbc39c54bd0d4c45c967684aa3b8c3b8ecfb4b5ea007f1b1cf23. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARF062100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c833426cf637d26fd84202703f1756f5c6bc792f002d5108a84b613495389d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ARF062100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58463d40b4cd2102303d1076ee6871a9af6954f07078bc1f45f14b6cefada8af. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARF062100265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefac9d9f5bf6d1fba38063269177c1377581e96505d8b3d9e06eaebe10d7866c. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ARF062100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70ab0b6705fac6b10895138adc1b475eb86965b2f397cb9d3fbe7037abb073e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARF062100505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6550d279a11cd25b89364c3f50c8ff7604cfa6954ca1e943eb2cecd079408305. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF062100507.
Ella Necesita Amor / Regresa a Mí (Acústico)
Ella Necesita Amor / Regresa a Mí - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4f485d2c8e625983043a0946f4984e3cf007c3b206428b37ace691e7ae3592. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARF062200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc16d48f980cdc025bc321911e944d4e5940ed6e54e126cb7bd62c1366e5e507. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ARF062200341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74022d292bd24b820fa01b8102c41f2efa07a7aca994ec52b1520ab4866a4378. 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/ARF062200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53cf51e699773148385626fb6384e610506ec22e04e8f6052be41bc6265d536. 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/ARF062101043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aeff1b14b5c504c7c76dace82699dc298ad8080d3c09b3c1fbfc72bd1c679d9. 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/ARF062200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0dde46a44ecd20b4ede80a83b8f35d7a68604c0230ec68cbd6bc9d3c9553bf. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T07:27:32Z), 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/ARF062200555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782c9c6a6533f682aadfbbd042711c5a5ac91edc7994dd1c0e79ac833b773884. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARF062200556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e69442867be7622f008131ad8dd6cf1ee15f3f4de67a4c22033e69f507c4a34. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ARF062200557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a05b1b8e80adf7e00fe3f0ce7afc6a0700984c9742fe935117e5c2c18fea1e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARF062200559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba71ab2f97f6c28e9b1e10bbf90a1fea21de7170912b7c9629c5bbf8f7de2c1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/AR5UH2302068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf91bcd3aa0553f7d39539414e976b312d7a6b98af4efb5777317247b8047ea. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/AR5UH2302483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40696900f34bd010bc93cc6197e61690f375ea8c9cce377ac91829e07829bc7a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/AR5UH2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88cbf33fdd8bad2de6c6b5a4ee009be67c8aa6b313d17dabdac635cee9f901d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/AR5UH2400442.
Paisaje - Y ahora que no hay nada - Yo el único
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69721720b56ef84118c3913c2aed60dfe808e1cae61090ca6988d50bad7df473. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/AR5UH2503049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d02850443bffce4a1ec42a1291372149a787e9e5da96816586dfc0c0bc2e329. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/AR5UH2503550.