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 0x85b277e831c71855028dfc50e871093dca182973a021bb351a7ee0c800467104. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c685944-1d20-4864-a4ad-31f42dda40a5.json and https://artists.proofprofile.net/proofs/artist/6c685944-1d20-4864-a4ad-31f42dda40a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leo Pa’ Mis Amigos (feat. Los Leos de Chicago)
El Niño De La Tuna Y El Gallo De Sinaloa
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 0x650a40a013f397b86a5da2441d0160a46db31aa0ae431eef8e3d4d790f09de63. 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/QZHNA1913151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb698e67c07b0e958bf14e1747e281a173a1847936087cb86974b90dcb7d8a0f1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHNA1913155.
Nomas Este Rey, Rey Pobre y Los Ojitos de Mi Elena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca01632b4a28e20fff59daa3717209b0ea0e613ed2b85e35f28e80e54a579095. 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/QZHNA1913156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992194f991960e1ff107d0f40704eff393b83ddc9e76bfb2688be82c98c332bc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZES52096391.
Llevale Esta Carta a Esther / El Lunar - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f19faee5ff91987440b5055ae75d3daa6036e6c62cd83205640d84379f89346. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNWV2064850.
Pase y Pase / Calles Enlodadas - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d73fdc59462524f7c0f80ec35af2cc69b6c61b5f22c1598fda3943009f73d3. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:11Z), 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/QZNWV2064851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b57f2779e7d786d4171ff5d01f2ae3c73425ad5dadd6e6322b0d48a154d5eb. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWV2064852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04526879b56aee1403dd06f08cedc773ed436cefb7a6eccc363feec8757b29d. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZNWV2064853.
Un Desengaño / No Me Conoces Aún - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c3c13d56eedc5f5827bcdf8a6c075f9e74ef01126e19182959feab01e10c60. 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/QZNWV2064854.
Se Les Peló Baltazar / El Diablo en una Botella - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423864a9f42895288ecff00cd5f3214598232f0a2dceefa17a86c59363b847e9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:42:05Z), 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/QZNWV2064859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fe4a8cf218516882ed6552868c166d8a9e08f43ba0e3c5416ff16b5d3ff9a4. 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/QZPLR2067536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ebc7f96f59e910ba31ab777e294b140c993dea31d2bfc20842150776c45586. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZPLR2067539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c3279149e03cfe50c5790470cf586c5061b5e86db67686bd3c093b89f5c468. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZES92102552.
En Vivo Desde El Rancho El Tigre (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68317523e1ebdd210a5db948b90cef123e088e9a520022e6fa48bbf8fcab0c4e. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZK6M2177978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2331be8c2ae2b0b066fbfc2f7a4255dff7cce790eb7279aca6c600a9356bbd. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZK6M2177979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8ed1ebfcc6b1372bbbc97204cf562e5f8029e094cc230efa412cd2e82701a5. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZK6M2177980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5258e3f7048307518801dc95861bff02c16f5e3c3406a6c1d17f43030f10f781. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:01:16Z), 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/QMBZ92486193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389a87c14877757c20a4e8a6d2887bfb9f9c5de7380a8a20f5859f9ad21136c8. 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/QMDA62408133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e95fea0059c3e93a15e8ea30e88973ca65d89f85606e417957cbb4b2a604fc. 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/DGA052089487.