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 0x7796d0ef7906370227f3f9e2273f6c1bc68b1a03e8afb69df816918b1d29b869. 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/ba2b5a5f-780f-4d74-9204-17ea0fba1f8b.json and https://artists.proofprofile.net/proofs/artist/ba2b5a5f-780f-4d74-9204-17ea0fba1f8b.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 0x571484b861a1121d9fc42c176e050dab94785a58e3681d18d5c47b57364d0e2b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZW9M2276060.
El Son de la Vaquilla/La Loba del Mal/El Pavido Navido - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c2e7fabe6c40fda8f9961a4d17b4c13031649b5ed27280cff6c00f339b2df1. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZNJW2549108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18144d98db7be3d69bff25d524a9339715bdd3315a228834b5c11e26e717265b. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:46:15Z), 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/QZNJW2549112.
El Son de la Vaquilla/La Loba del Mal/El Pavido Navido - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bd01a29091da7842430787e5932560931fa66d2435285941abbcc0aaff4299. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:35Z), 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/QZW9L2282645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e0bcaeffe51dc7477de509494ea130c0f35983ac44945cf4509e2fbb6247e8. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZW9L2282650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee500c7d16aee1491a9fc31876ed2d5a21ab86abceea51403dca064cce14a598. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:21:24Z), 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/QZW9L2282655.
Corridos y Rancheras desde Sinaloa, Vol. 2 (En Vivo)
Corridos y Rancheras Desde Sinaloa, Vol. 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0149eba8fafe5039236e52f9fc49bfa686de1f1bdfa8671cfe1d52cb12436d39. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:00:11Z), 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/QZNJW2548998.
Corridos y Rancheras en Vivo Desde Sinaloa, Vol. 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f14d4a7d3d5993c5e0848e925eb1145e43b80a7d0df0556280d25d76eb3ddb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:35Z), 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/QZNJV2440728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb864dfda5764a5fc175476e71b36e3d82ce47c86930b3245d3c70b65565425fc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNJV2440729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd24dd3419084937e8a40dbe21fa60c44f02e719304bf57649e5715f837e122. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:44:42Z), 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/QZNJV2440734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcc68ce10482e8cee56fc25fa14620cc57cb471a76a28c808b815a7057f6cd5. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZNJV2440739.
El Güero Colorado (En Vivo Desde Surutato Sin.)
En Vivo Desde Surutato Sinaloa, Vol. 3 (En Vivo)
Te Voy a Olvidar / La Farsante / Ya para Que / Fue Tan Poco Tu Cariño
Recordando Leyendas del Triangulo Dorado (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f8a83c5e511efe2be4efb85faa9790402c58699327bd8b282d34ce78f06e9d. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZGLS2389118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066f73399cbc3f17024ce0f6ddb88d1f80962a91cf94d912ac9bdd0d0d914c75. 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/QZW9M2338913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125b46ed27a921aff351df3930a8f00353bb1f6ee66c7c744dd0cd9a235b7150. 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/QZMZ92466990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7faefb7072acc1eec1f1557a13993557f2800548c2794b3fe20256f5c96f32. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:47:15Z), 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/QZGLM2525366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db912ec34e8518f5a0ab513d029d2f9e837c57ffe874903ae57da51557245c2. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZGLM2525368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2896751606e680332185310aa1cc38f0c961babf1f16dda7ae500518076fb68. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZGLM2525367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21a7468f0c5ea1f33b2f2e45987c4d35c1d3715723b91ee8126ebc98894fe57. 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/QZGLM2525369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ca1e6242c89f49d77487a3f9fb5c87f14bee7035608b2997b305dd2702de68. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZGLM2525370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926cecd897cf2d7c479ed66b10bae26c1a698f9b3604f66985436973e7851242. 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/QZGLM2525371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94de7393016c7e1d42dbf68e682b58a1d229d41f46f8f2027062eec55736bb9c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZGLM2525372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f28ea6abe42b2a657af3be7fa65b66c80a2911e2ca7d37abf768d585dfc78. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZGLM2525373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4006ff189eb6f011f0886d7ff6edd01246d7001a1065e32a8502bfb331251b3. 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/QZGLM2525374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9faa4fa20000c40a922f43696df74eb6c8252df6a5a4fcd06a3c0ce2132dc. 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/QZGLM2525375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd3c78eae27ba580aa8740ba911be3ac85ca46960c635c001eec90ee2f685e3. 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/QZNJV2555115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13edfacc4cd12884fff570f62ecb58f87f6dc39a0d080772c14a0812c3cc1ddb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:53Z), 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/QZNJV2555117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec680a74672ebfa2be1fe031a27ae4651f536acd434e81ae8e66d9496a7dc9eb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAGZ2398642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404a2065f7f910259b415b757173504de77bc2e806c053d951da47eca72bfc10. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/TCAGZ2398716.
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