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 0x92e495c8639b5aaf666ac312451e82af6d2d8a6a356d0e2379352dc69d1127d1. 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/4ce50bd0-64ed-4f82-90b2-57b6d96119c5.json and https://artists.proofprofile.net/proofs/artist/4ce50bd0-64ed-4f82-90b2-57b6d96119c5.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 0xa300a906268f5c1acf93aeca4457380263436f9ede7c3e4f02ba6253db7914db. 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/QM6DC1538247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7c07517490124b9e020b4e95954f5d53217c0cfb5ae2544dc53efbf41b59a2. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:08:10Z), 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/QM6DC1538248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7723493a4b258d64939807b170ec8a3fe053707bb42f95a3294586b5af57affc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:23:51Z), 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/QM6DC1538254.
Los Reyes del Movimiento Alterado [Explicit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3babbac65d6516d9f5e7d6e93d5f1bb835eb90a18c46d784d6e3869c6499c189. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:23:35Z), 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/QM6DC1538117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f96fc7373b0e381c07bd91a89e69de15831af741236cb230eec19e6ea2c8e6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6DC1538123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d0a8f2f8cef0eeebc7811953d032badbad2d0bc056cb0a6c4678d131c110bf. 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/QM6DC1538124.
Entre Hierva Y Polvo Blanco (Con Tololoche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9111e235b66f3f80b064b80413094400468d2b18519b13a0ce9e75755864db. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6DC1538694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9301577e9b7ff737965c9826410e1ad4904c65e9db3f8bc7a30130d2cb5a063. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QM6DC1538695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edf37edb5bbd25fadd33ba7ff2e1d03c81df24d205b33c8ca627f81a01143db. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QM6DC1538699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029364d51cf90d367a8a271c7f356f591988bd6dff444e251a139296ff1b8169. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QM6DC1538701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45d24313acd1c06ec0f0a82fcd3a8710972f4e5a3c3dc7cd0a130b5bcc357c7. 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/QM6DC1538703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa212d8fb4185a9d0bccbc5d7b2b004eb7da070cc4f9e974ebadb298c12b18981. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6DC1538704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee2baa16433c2a61353d90d1e9d31bcb6eafb316c103a24e773d3411628c300. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM6DC1538719.
Los Hermanos Torres (feat. El Mayo De La Sierra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d4a03cafec96fc167dc8b70bab3616317b0e729da91e977b5355d0755e3e6f. 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/QM6DC1538710.
Buknas De Culiacan En Vivo Desde La Sierra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8cc390ac4e007f12bd98cb9b1e39ba04610bfd59a75236b2eecf8d7db7bfc4. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QM6DC1689574.
En Vivo Desde Kusey Bar Culiacan Sinaloa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc1643abf92e93ba80f9f93d144ae9c2f494815b206d70f1b37586b533c08cc. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:21:27Z), 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/QM6DC1724170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f17afc8cadc1322d6504a78a06aa1d7e8a74b50893d7dd7f7a6752a389049. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:16:06Z), 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/QM6DC1888342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c7ce564e02cea132e057dd374367acce902a25b377b68825052b7d1b85b9e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:01:26Z), 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/QM6DC1891524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8954eb6e61397210efdf083de1692f32332c8ff01d214ad74f14df911aae12ce. 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/QZDQH2163750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4eb9bda204d27b206d086c4e75294e94fb5c07cc69b2b323a7b0e84ba71da5. 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/QM6DC1538187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9d303959903d32d05cf649713216cd3f34bf7101a9e75c643966cee3523fe3. 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/QM6DC1538188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cdcf0acb137a806b2e02bff9244a195754e4e45f3024e0a12fce19af9353d5. 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/TCACI1559649.
Orden Exigido (Feat. Buknas De Culiacan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7af2d2f4b22c9f90f40c6ef904f74038d02311c5c223abbbdf6743bfb6236fc. 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/QM6DC1538429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3571c14a82fa874d13deea88f813130f046ede8ffae1bb617f2ee0235109c17. 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/QM6DC1869597.
Juicio Final (El Regreso De La Ultima Sombra)
El Movimiento Alterado - Top 20 Corridos Delincuentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413acc27a2a573c3f0af98d15da8e569106ce46a6112ae183a995107c43522a2. 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/QM6DC1538588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf047f16762f2cc387c4abcc83dbe8fc7934ab14b1f281a1dcc425ef134175. 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/QM6DC1538595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384d919d14f1623048f4a653214a5b044509a08f09ff9eedd87bac9b03bee029. 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/QM6DC1538605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ec191634d1a93f506f7638c296053cf414c57ad111e77da2cba26139c4ead6. 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/QM6DC1538010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e69850183f25a7a24cc47bd80a44e14f46fd117cedb5d442265a3205ab1f13. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QM6DC1538310.
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