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 0x0e3781740488cfd8b66e574795773bad03d14eff70cc4c23e72425d2895f6652. 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/038f9b74-71e2-4fe1-acd3-7e09885207f3.json and https://artists.proofprofile.net/proofs/artist/038f9b74-71e2-4fe1-acd3-7e09885207f3.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 0xc2c8b842e383c045accb7898b5e0289d6f10e89695f459cbaf6730810594d8d5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZZ662336321.
La Nueva Sensación Musical De Puerto Rico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be83f66c31ed108895d20056362433df00c6624a75932d2d4908941c98e6133. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USDBB0603772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffafd99a91d228f2194412a837dcb077692163210e3094e6ed59c76566c0b6b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USDBB0604379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27dc5fa0ca92ba030491875f0a5fbe23749269528071f3bcd66f6f40583f9f6. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USDBB0605829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad96241de66ec3a8762d64e4a5b20af42d1b08f7681188358e1f68b32f086bf. 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/USDBB0604758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61194ff8dbefbf7ffd15416c4a62d4b62046d315dbd11564fe0c9466b1d7b350. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDBB0603035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd205d935cc36cf60aa2452ab4ed5861fb4842a4584a20c262d805f204ad61a9d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USC4R2441883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82294fd7a50a7721e0dc3028f8c656ac9ab23179bdb147680dea068bbd524f05. 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/USDBB0600545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9141e2b4d2bfaa27970d321e6bff1b080b8d42c1323726c5691a6a191bf525ea. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USDBB0604965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0922f98c76eacedba0aa75f217ce38670cc3a8d1bb3f18a3703a3d5a74a096. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USDBB0606909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7132dc245db385f1e886e5bb300e64956d1b826ce3a11f842042b183090b99b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USDBB0600594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26a18f9543ee6312c78b5fcb634d8ad99cdfe9c2df57b7138733d0e112cd956. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USDBB0600776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a12150363f5ce6bd8cfdfb1f7ad97996640ba46dace163b624b703489842d0. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/USDBB0600764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611bc44de505d58e8b829d84634e359f6118511f1d49dafac81cbb37360827b4. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US6R21522427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ebe0ad9e09bda712bcb7b8f817d4028dd0077eda3e0687c6ba222067672d11. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US6R21522430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444905e7ade824d548ac21c4fe182e010a854513ce25e206b88c5b1034fe6327. 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/US6R21522479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a333262f779799c91cf8ee71af34cbce33c10208f7b2fed5c437c73df0d3fd4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/US6R21522485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b918ee87d8e10fa35bdbe6543ab0338b4254339aa562f8ff8adbf9db1de8e6. 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/US6R21522486.
Celebrando Otro Aniversario (feat. Frankie Ruiz & Hector Trioche)
Aha Uhum (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0f060affe5f715f710f27a020205f1fc1534b0a7f1501ed00a001cddc9d806. 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/US6R21504163.
Aléjate de Mi (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2022783c39ed309f0f8729a23a0199de43182f16c6d3c36957716505fb25c95. 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/US6R21504164.
Juana la Jicotea (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36761134f0a4d58b1a0253474df823b548356fb0216a8b7e269eb5d9bcbbae04. 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/US6R21504165.
Lo Dudo (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53f3a0ca37c24a3b7eaeca97113ba0e1b059410ed71a91b7a6c68f94898762f. 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/US6R21504166.
Mirian (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa180e899ae0f223335259c3f163b1ddf078c84f258ef52c10119561f6f63b314. 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/US6R21504167.
Pancuco (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e001f6cc0cc440e6f62cdb2267e4c9b972936c36fe91caffa50ccc2334e3a47. 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/US6R21504168.
Patsy (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7046974186ad15cbe2eef9bc91dc4dd218c058996a5b4c69dec16f5e85ea10d. 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/US6R21504169.
Te Estoy Estudiando (feat. Frankie Ruiz & Hector Trioche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7ef20e394afbfb81a23e061b6fe3b258ac61bf928c8885c6b736725c4e1d64. 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/US6R21504170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c45eb3e66d8f77044c90e0d1bf76e0ae6382a14cfa1bb1009b04d5bbdae28c5. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/US6R21522535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde42a1545122479a2b7139d98328d6093e347ec4be5c60358fd55e61589ed40b. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/US6R21522536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008943e09715a47a28e190c097a36b219246240f7411e21028650d5779957b7c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/US6R21522538.
La Nueva Sensacion Musical De Puerto Rico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a5a149a4c79fa81226a2dbb7fc4cb458398f06f42bf96a0472fe227bca7804. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCADN1850825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fa0e150131e7501401da6f463f47ab58b85c26e9ec3bd99f8612d9baada905. 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/TCAEJ1913642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08c6afafcc4531affe2e3ac09adb19ba41ae42d48fc05a92aea722755210c8a. 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/TCAEJ1913666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732e07d5995f4abc402d3175f6d1d1f0ea5a8d44ff5bd7c08a6dbc940b43c178. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TCAEJ1913688.
NYC Salsa: The Incendiary Sound Of Latin New York
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d5a3c6de07f4c36e651266f683e6b6b00094d49fb30ad50a7c623cc5d80429. 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/USDBB0601668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4481a41f607942421a1885a8b5ae0224c200fcf4927d7e68167df93ba1638a95. 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/TCAJA2443283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc767203d3c7172e6b9877a87506adaa1e17dac0e29c8cfed5e6a05efee48b4df. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USDBB0609587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc767203d3c7172e6b9877a87506adaa1e17dac0e29c8cfed5e6a05efee48b4df. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USDBB0609587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323918810244a82075bdf4db9b7605c1e04c8d50bef7bb030741e0b7dbb4eab6. 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/QMFMG1594095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7f351bf19c080040d1f26b52908d099486e55cd8523e7c53c4767e15604725. 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/TCAJI2517340.