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 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 0xbf5a26c03d1c8d293c78eee3c12341c2a7f7e5cf0ac12827e0191f3654e1d454. 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/4f6469a2-abc1-439d-b6a6-27ff82103342.json and https://artists.proofprofile.net/proofs/artist/4f6469a2-abc1-439d-b6a6-27ff82103342.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 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 0xbecd54bca4f96850d1a169390c705f8e85d5d2995d8aa92d64e678f272a257c1. 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/USK340700053.
Frente A Frente "Los Jefes De Sinaloa Y Nuevo Leon"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceb195646282d499ba22fc3a4aaa8bf833edf716cf6b13da51f7aef8816ca89. 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/USZBG1112393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3d8e05dac618f1a09293ddce0d9b34418272b4903bd92a05fcc9fe7f1f09f3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/US9CY1003679.
Corridos De Fama Con Banda Los Huamuchileños
Corridos de Fama Con Banda los Huamuchileños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd0baefac3fe797c077bcf0fdcfeff8f202dec86e248f79b800aa6e7061cd4d. 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/US9CY1003762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5ea2ccda7d4ca74e1f54b06b59dbf2c6ec9653980d61d00bb737f43b4423b. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QMBZ91309309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21a8315882360ffaa5d66031a67e85e1a1d616d51afee91d805dfca7ed6e48a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QMBZ91309310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2258c34a01ff16d7a0d060833015e05f9b9799aaafebd8393c877a153f0923. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QMBZ91309315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf8802e68a879d4de141acc7b47aef995b99ca72646ef1f494f363fe06e9d95. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QMBZ91309316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2f8700803f97f227906cca616c47851f4c69dd139a31140ae0a8152a281c50. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/US6R21433594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77df9bf789b5c88c72a3b221c19ac6d32117458a640f613f7442621276197a2. 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/US6R21433595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7545b8c94076034dce965f08932875f402751454ac6f35447bef3ba8b7723a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/US6R21433596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28705e44dab2fed7ff0d7a7353964f40c13ab8e5685435c84232282721d67e11. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US6R21433597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb69765f672366cf30069eebd4c6d3dba6a26d355ab406beccaf4d4dad98a38. 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/US6R21433598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872f1d3651b4c790cb4e959f67feb8f6d0ddfec00950ae3957c68dbc8e22a2f8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:31:32Z), 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/US6R21433600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299def236285e53fb6e75d72a93857a05996ceefeaf90a189f35d5ab38c36690. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/US6R21433602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d3c0e7e5f09cb3ab67a8a0af499fe7ee4883f700910198cc269067c6dd7d8e. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:42Z), 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/US6R21433603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd7151b93f8b51e28ee0560d0dfed1abecdfec036e3d06090297dc1766ed0e7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US6R21433604.
A Todo Sinaloa Con Banda la Costena y Norteño
A Todo Sinaloa Con Banda La Costena Y Norteno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cac17f39ee87ab50bf75bce9d31e4b2b3731d2aec1fa96c72e4bed33900c9bd. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QM6P41555996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8541d9e71bedb1275bec740576fe0e1388b93c84af161f884624d793e1ba0c97. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM6P41556006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650be43b606d1dcf6433a37f6252ce332298af9368187b208195db5d2b29af57. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM6DC1664792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888abf79cc0d2078ac48b6135f184240659b7e48c62f87e5f2299b9e6c76e52d. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QM6DC1520468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e6901699f609d6a9578c46d3a2fc0e2255b6fd4c10d4ea582c7c4a354ba206. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM6DC1520469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab9119d6cdd179986680939088c3d27d54d1ddd7f5553863802c7653ab6f084. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QM6DC1729787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d05d1d452642096f807257884288b36028b0bb3c684a6e665e8f81d6a66c2c. 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/QM6DC1729789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddf7bfd7ac35670d8e4b32e4f4858b92e2c55fcfe95f4ce8a29d6746e7f85d6. 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/QM6DC1729790.
Que Hermoso Seria (feat. Banda Azpericueta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b410eb3ce2e878b97195d6d2d6d2162bb84e84963b00dd1d388aac155e4c16. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZDQH2007885.
Despues De Mis Errores (feat. Banda Azpericueta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121a9b496c017a5e9f18337de4f5e772c4cfc4ccde0f83d77a388f182290eab0. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/QZDQH2009117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef68e97faaaf882b36622070ae8066a12187b554a86fa0360f6977ea3a399072. 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/TCAGJ2283827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed8880200934a943e8585431e21dc303d95e19af4e5326c5378189c9e6ad51d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TCAGJ2283868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b31c1214046cc76a6c7834a8824eb6c3d716f0f2178659bbda1b37d5c7dfcc. 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/QZRP42426897.
El Rey De Las Cabalgatas (Israel Martinez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca18559a62b95983d00a9343910848cff0bd22ba34a9b1fe72285b86fb7d11b. 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/US9CY2202326.