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 0x3a89b272adf3a4e389313eff3c6aee3ed8d9581c5cca5946ae655a7de62a751a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a201f39-27b1-41b8-b4a2-460f0e071b45.json and https://artists.proofprofile.net/proofs/artist/7a201f39-27b1-41b8-b4a2-460f0e071b45.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 0x3548769732c3e54f6e0525a09d04c2461fb4d7d40d3b259bf6cabe8acb73a3f1. 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/QMDA72268931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deeeb055b362be277c201e709d7fd9fd46a2dc217c7625759feaad371c88a44. 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/QMDA72268932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9514cca75ae3047b90be559bd60cb69e0bbc005d55d174e838ed30ea12bfe3. 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/QMDA72268933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11442ab359b03a6e2d6c660c914f772ad92968977e2f7276668087bd0a9fce5e. 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/QMDA72268934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3793c42fd2b6c9b512fd4391fe36c9a31b77ad29ed80ddd5246b793a6e2c5725. 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/QMDA72268935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02445eaff902a6f6cae58ee280d73f2ead03180f544291f28b06cdc865f37221. 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/QMDA72268937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac0beacd876e9bdca10d94cefecae7d19d7adf099f78cc696cf2530ef584504. 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/QMDA72268938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086474f6555fc441e53e25625b787cb34a02f78198fe9b83c9903c5e87b27393. 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/QMDA72268939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f120ac991e0acd60e631df9b4cdcf5b02f25165bb8d442a0b712ec3a519399f. 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/QMDA72268940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18016ac68ec5746480eb8eab55d1c5d4ecba3384ef4c9e25cf70e9aa3039fde1. 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/QMDA72268941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5731917056a6e05808fa0395c1d935de5bf48ddf07c61b1b6ec56efd3328fdad. 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/QMDA72268942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23db4268e6c2521470cafb4bd9d0b349e9d9ee051a03868c37ab7cdc88f39fa. 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/QMDA72268944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c82ba464267a6c3a3d863e7c7d7aff1b7f19892ee3645c2a40ea8fe8bad420. 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/QMDA72268945.
Alejate de Mi / Todo Lo Perdi / Buena Suerte / Ya No Te Buscare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274f94e2dd7642caa6879265c2cdc67d4427725e53d6ceaaed0b891dd164d303. 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/QM4TW2288388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7d1b51ec4b9c9b6480bcd08a879f7d6283fa49aba208f8938144b52cceb059. 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/QM4TW2288397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985adb97f5ee3c6050f56ff71c15e320ed2ee712d9d978138af5a1093ac1c800. 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/QM4TW2288398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cb58ed67fd1f7d2056a6ec37efe59878a4969fece3926c48f42a09c5e51100. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6N21829983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87151806cec7ae5365bb31dde62a12e35907db5bf0669646d90de3bfef88a487. 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/ARF061600055.
Cumbia LBC/Les Cabe/Que te pasa/Jabón chiquito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11383fbd82a6bd0f7d5ca61b78d6aaafe9983291e52873a356280472b0e1b20d. 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/ARF061600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3633f1cc4a0a74ef528373e5929175a028cae62acd8c667a91e52595e63aa18. 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/AR81E2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa550b506c058e9e88965521c36bb79e6c411e36ab545ad268d9f2565d911a28a. 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/QM6P42362939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292a3ce4780a998f7d8d43d107e0fa8bad900df9a7c9dbcd3c670b27b8d0f32d. 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/AR81E2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518833915416fb27c9c331d111357bc53c8ce7c4b7f0831434f1551553cdf783. 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/AR81E2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e5eca579884c32294c62110e4a68cdbb914bec2944477379f084d8c4a2cf21. 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/AR81E2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6690118a8bd3786208fceaa81db75e470bd703b614bbbf3b93640e1b7b4867. 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/QM4TW2302195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7d7d30d8a83b0c0c3266fc01523de0422c07fc80c9474c0a52144dd0b2090. 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/QM6N22265641.
Baile Con Amigos, Vol. 2: Amor de Su Cama / La Pupera (Live)
Ya No Somos Ni Seremos / Me Hubieras Dicho - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485a13209323a5a9ef4045e7370a92b30877468d61d91a232c46c5b893205aa6. 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/QM4TX2481753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5fa585cc954248557ec659931c42ef6c94a61231169007a88ae3669928364c. 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/QM6P42447248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdbe0077b1bf14fae9c61f960a2969dc01c4968c9f931ccacb7768b95569c87. 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/QM6P42449268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816bdd57091549d4c1e6c6d5d287a5978a2ca689054dd382927444902bf39e72. 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/QM4TX2413877.
Te Voy a Perder / Mi Historia Entre Tus Dedos - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7a37ff6c5d9052b821d463e2012a2565508e95aeaee4a0080cbc5bbac24ec3. 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/QMFMF2464680.
Cuarteto Mix: Amor de Mañana / Demasiado Tarde / Mujer Malvada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fa0f5e3869420e1696c9dc5de01e0e531e522addca5c026806909b2dd5c8b6. 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/QM6P42449254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdbe0077b1bf14fae9c61f960a2969dc01c4968c9f931ccacb7768b95569c87. 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/QM6P42449268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9907312ef47c22b8d1246d7d48429fad31859bc96620fe2a027e6aba665072. 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/QM6P42449173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5fa585cc954248557ec659931c42ef6c94a61231169007a88ae3669928364c. 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/QM6P42447248.
Ya No Somos Ni Seremos / Me Hubieras Dicho (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485a13209323a5a9ef4045e7370a92b30877468d61d91a232c46c5b893205aa6. 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/QM4TX2481753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816bdd57091549d4c1e6c6d5d287a5978a2ca689054dd382927444902bf39e72. 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/QM4TX2413877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c0c3179db271eed039defa3d4faefc832e0313728b228db4a222904f329e4. 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/AR81E2200007.