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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b75535b0d385cfbc597fe5b91647f3a09d5df51fc5c25cb5e69f63f6b8927c. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2527d15-bae0-4d77-b4c5-303a13da87f8.json and https://artists.proofprofile.net/proofs/artist/e2527d15-bae0-4d77-b4c5-303a13da87f8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e706a96192f56d538e06d50bf05876b35246b4f6d6f533e49a0dddfde7c117. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM82366801.
Quien Entienda Como Es el Amor Que Me Llame
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1f974e95303dd379fc137734e5e437fd964fd988e12a4bca3ce5298ac7e941. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:22:57Z), 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/USL4Q1996294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75703a4ffdbd0051f836423f507d5adfae4e2a6af4c17f311ce2f8c281148e15. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USL4Q1996301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a9f6350236213df8202bcda8347ca47b4c574da53d6c2b22636b018cc6b51b. 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/USL4Q1996311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e553e77ae24fb3c0a7fcc9fe50df61ab7e811eeaca0dd9e5a493fa6371154bf. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:35:30Z), 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/USL4Q1996322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db3a78b1d3b90ff40f0f1bed0d7a0b4d660ef402a5f8d8fc641e92aa941d4e8. 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/USL4Q1996298.
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 0x1132386cb2caf1642cf17d017aaf2d3448476b09b8d5f34e7114b3d5b2a9bd0a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USL4Q1996305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55bbc3cf02eabb51db64bf9694672a1418881c014b345dceee8dbfcf7fdc73f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USL4Q1996319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaed786e7ad7a503fcdce19c878069dac9a278abe3d02f5e0899e26d72bdfda2. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USL4Q1996329.
Los Éxitos de Lenin Pulgar y Amor y Gaita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df3ea0c9046f67e19a7fca8acb60eb84dabb15d74cf12502f611e6adbcdbcb7. 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/USHM81831822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8fae038bf0de4b1b47eeb5dc78bc87f21eac98f35a7e6ce0ad00766d79c094. 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/USHM81831823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49a7df5f8e7af4beb2b41b7bfe084e3ead778ca8b85d676ca1d037fd7e1a89. 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/USHM81831824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8ca54a3446554c427aa28ced9c2b11f4d3d54c28eedbf48be137f614667c09. 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/USHM81831825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101a58a47cea16d5b1c44e8c611fbde8ba6c22db3d3605113eb6dbf2c07389ba. 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/USHM81831829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff9af53c5dbdeeaeab795eb4bc79954602ead19c1ffe573af771f30c6854d7c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM81831833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65c4cd18932e8c29c4898fc85787c88740688c6413fc107135e74da7af4ba40. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM81831835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b16088fffbf0f7988660d5663748a4bec57ced6243ec01c76f5b3d93ea75fe0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USHM81831826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a6fbe52972b9812c80638d18a567a7a7aa44b261446528a69960ec78ae5c8b. 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/USHM81831827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e342a1e63e93d0006676886659b010681b8c75faed1cd95e3e811e75cbb91b4. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USHM81831828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069ba177789cb15ce3b6ba09489dc26860bf36ed3892400e6d9a863720c71955. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USHM81831830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2acee0f7dcdf5586870c1907fdc63d918f39f0f01066e1c2cc2e82634fc01e3. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USHM81831831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f195ae2d8b4ff0d8f6ad4687099b52edf8bf2a2c7666252215c0d8b8cbc83c. 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/USHM81831832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801ac3cddc626001a8af0f5d4e0217a585c89f0e0409d718d07dc71b70317dff. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USHM81831834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1431a06ce21aca7d0a31abbfc8bf07269d4abf07141184e3ea1b6107262017b. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/USHM81831836.
Detalles del Alma (feat. Aldemar Torres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d410d907ed9432ef35ac8f83a5100042d73eea15c6101fd1ffb4a7b5151849. 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/QM6MZ1859330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1f29d983da2a6b50d9b42ee275396c6037ba9be662d476f13aee222ced01d3. 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/QM6MZ1859331.
Cumbo / Vivo Enamorao / El Mono / Llego la Parranda / El Avión / La Candelaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc048d277aa6dd90c9c5fef2dbb7c1812fb68f3d88c8bd078b6437870e8bec9b4. 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/QM6MZ1859334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78da5ac390ac915dba54b9163ea42d8ebd8c194803d7128076d2afed21734c61. 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/QM6MZ1859336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0def7caccfacc3c4d5227cf580f6d9269a0c838c8d44106f2afe2b001c0fe621. 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/QM6MZ1859337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a72905e5c36b91e0db91140921f17be27c12bea364d48bb5b4f4b375fb7fd6. 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/QM6MZ1859338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e9809bc4fa92aeacede44df6327c98121bba026b65a363482a6271dde4168e. 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/QZTVM2472510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143355abf0da724e8f5b86b5614e4154dc80c01212e29fc2159665ac4f9d63e1. 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/QM6MZ1865003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48ee027212c82a95db96eb4ba92866620d0345a7e5a77d3364cb20222ff880e. 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/QM6MZ1865002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee36088b9c7eb5e56820ce3a59ee0747b3318ce23185666d15809b13a2db9c9. 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/QM6MZ1865001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d8a8c9c65abda216e380a905ba3b0772dba5dbec3aade3defc46268d8fae5e. 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/QM6MZ1864999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c42d80fa6421371117052536bea055c5daef76c7ee3ff7814fba176df6bde. 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/QM6MZ1864998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a8b9bc21352d093bb61adb0e71c987818f75ec2ad926a3635eaad4be9210e4. 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/QZW9K2448925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b50f1c727e16a2f37f17ce14de8f0de4fba4faf902f21193de37d50f17ec92. 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/QM6MZ1899186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5c7ffa9588ac2c2b7de79ad135c17c1c225bd18036734aef42e021e03e3482. 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/QM6MZ1899189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa50bc984f193384e76113e12cae8ea78cd355dccabb94e180401bd1dfb30303. 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/QM6MZ1898854.