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 0xbb7aec5545fc06616ac9a38d272ae5b0f064c90ae4047230931c97d0f2714644. 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/6a715dc7-cb8e-4c9d-ae92-ea38e0742e8e.json and https://artists.proofprofile.net/proofs/artist/6a715dc7-cb8e-4c9d-ae92-ea38e0742e8e.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 0x439b499b80c168c62fc893f416ddb7b4c20a110cdf730d96d560671898ba8b47. 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/UYD121400035.
Casi Soneto para la No Justificación de una Compra (feat. Martín Buscaglia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40998ffba2adccda13e1cac236b380eba57ba7836b45d042cbf4bfda3033a79d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UYD121400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e131d7260a658bc93790e2db49fe203cde0d0357714af8d8f9ece193b997d2a. 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/UYD121400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a0c6abee045e8f3b2be8ee6558b19d9437d7ecb31ceff2f4809cd97ced5a84. 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/UYD121400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154df302b4d7ee8544de18df695c95ec4b9ffbb7cd0318003c3acc699f7bc7e3. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/UYD121400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deac1c202c9f3bd4634c3e824465edcf8b3c3506fd344b85330973075d9b569. 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/UYD121400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d0aad2f99dc603fbdea8cbd9d84ab5c21d5f4c1e9ec34aed4f76076587510f. 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/UYD121400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422a195554851931927c9e2f774f8af2de96301d314ec370547d62aa689d41a1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/UYD121400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97cc76c79ebc8fcfebde62b4a9cfa6616fbcdd3786dd46f3f7cc722a8f1589c. 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/UYD121400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95acd7861d0314be49bd2c0d3a9b8116b0181f758abd3f6be74bb4800fdd183f. 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/UYD121400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25a910ab6c7967d58082d1057d807896561f94952d0af8edca4ff077a824b22. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/UYD121400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1040970a6dc5672b53c9a1d5ed344fd3a3c47cbebb86d44fd804eedd8c6488d9. 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/UYD121400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74687d8d866cc3ac7dd0588a28290a77eeb1a05dadece21f8464bd4fa9b85ea. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/ARC571702067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048411fe87992d788fcae598ccf44a9650083572294abcf1e527c9dee6ee33c4. 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/ARC571702068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7076c14b35ed8002b84babaa164831cb7ffee51bf361c419bb56deb708c7b4. 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/ARC571702069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122a98743549fe26e87cbcf6b5f153cc8cc9dede54a836b51fc4ec0c47d36fa0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/ARC571702070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4a0b9e510a153d048ff33fbe094af7e9a9ac06f4f4552d50cc75237125af54. 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/ARC571702074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de51d2728518498fd521c7c9627b4b64e48dac9a7939ea6184d8ce56971bd75. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ARC571802329.
Porque Todas Las Quiero Cantar: Un Homenaje a La Canción Rochense
Porque Todas las Quiero Cantar: Un Homenaje a la Canción Rochense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc363111237820d45a813d23a2ff0dbdfa3d3abc476da015a958d87283c1a9c41. 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/UYB142019902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bb2b2398cab44b4702bdbc75825c01225d5a88cf40ef38f8add7a08db4dd01. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/UYB142019903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4805f56321f4e1ec1e7492e030a7febe48dc356dca593c802955945849ff0f. 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/UYB142019909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb324a6d0fb97d23c517db7cdfecf5b7395521fc2f429ea1bd4c0544ca3cde. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/UYB142019905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cc04a6a674db8da75e3ad2d66e5b0be750d65de719268b139db58fa8413c3b. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/UYFN32400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c9d50d232f8cb891a3c3dd4877c43959db9b72d33b55db3211a9478d601195. 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/UYFN32400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344351fa20ddb3c79a7e6a303d9d485e75c0415be24c092e4d957fe0a0d3fdb7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/UYFN32400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9746d82ae1deaa9c14e072fc61b3ed5a37b4d8757a7757f2922f1b6fc767f96e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/UYFN32400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e80c2b7b0ffe30212eb6d322f91a5dc60c1c183818a2151606285061bc723a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/UYFN32400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467a2bf9ebb38caaffda2182966b785b1fbae089a4d4eddfbc33e08beb7fc030. 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/UYFN32400010.
Bolero principiante (En vivo en el Teatro Solís)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6a30c69eb289bb8ed962bdae3db249e7c4babf7d963a455b167923f657835b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UYB141402019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9230a5b0c22aec1b33bbea9b80c2e425c304b416901422c0a1efbf7c990de51. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM8E51400569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8385b199a47acba226b43fe8dd92078c136b1de810a48af8e162f3dd49712242. 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/UYB142222611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fa3c9084f1388c9935c0562b941ce3deae7c0ae2ebbff7a1d072ee0b558169. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UYB142223806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5be3cb1db25bfd4eaa05f0481878240b188fac2dbb74ee4fabcf5f374bec82a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UYB142223813.
Nunca Más A Mi Lado (Versión 10°. Aniversario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72af59a94702773d6c6ca249fbf2a58c711cdefb82fb9dca5cddb9ac7ba8f59a. 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/UYH122100030.
Notas de Voz: Canciones Que Nos Enviamos en Nuestro Grupo de Wasap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca9c2b2385da7683227052efa6d6813710d79b8c1ed22607228383ea8644eec. 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/US7VG1848337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd6b5c0b8f340b0e618a47e13ff1f6c7aa887b7531eefa7ce82de45a1f47822. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UYB142321505.