1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbb0be747ba1dd5017144dfe8d26a60bdcce453d6fd653ead8db28cb62a150c74. 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/b839816e-496f-4977-8060-eb5a1913d93e.json and https://artists.proofprofile.net/proofs/artist/b839816e-496f-4977-8060-eb5a1913d93e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Que Al Cabo Ni Quería - Versión Ranchera
Que Al Cabo Ni Quería - Versión Alterada - Bonus Track
Popurrí (Sentimental, Amor Limosnero, Más Allá del Sol)
{"copyright_id":"0xb7e574735c72d5715f09c6863f63b9698a0252b0fa9af73f0fdbbd40633b9231","isrc":"USVXU2400018","name":"Me La Escondieron Sus Padres","registered_at":"2026-06-28T20:48:56Z","spotify_id":"1WYZzIOZxivVUOYlIwiPI3","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e574735c72d5715f09c6863f63b9698a0252b0fa9af73f0fdbbd40633b9231. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WYZzIOZxivVUOYlIwiPI3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1WYZzIOZxivVUOYlIwiPI3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7e0acb140529b55c0563d5278c00b7d1f9e3c053842ffed4ec976544dbd480. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6794zjBYGD4m00JTEvu4Yb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6794zjBYGD4m00JTEvu4Yb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661f54eec7b363eaf43a291339f562fb032c9fd68b8506a46727f801817ea5b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3xatrD1MZ05zCSBxvc0c5E.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3xatrD1MZ05zCSBxvc0c5E.
{"copyright_id":"0xb7e574735c72d5715f09c6863f63b9698a0252b0fa9af73f0fdbbd40633b9231","isrc":"USVXU2400018","name":"Me La Escondieron Sus Padres","registered_at":"2026-06-28T20:48:56Z","spotify_id":"4mQ5njiKFjvZ4QCJVl80po","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e574735c72d5715f09c6863f63b9698a0252b0fa9af73f0fdbbd40633b9231. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4mQ5njiKFjvZ4QCJVl80po.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4mQ5njiKFjvZ4QCJVl80po.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd30789809b6d867379933280eed840204cf375a27bd4babf43ca444cdc2a2d7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1kaoPje96HSjaXe8l1GS6k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1kaoPje96HSjaXe8l1GS6k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7e0acb140529b55c0563d5278c00b7d1f9e3c053842ffed4ec976544dbd480. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vSRDmfKjtQtxmMBGIy7py.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vSRDmfKjtQtxmMBGIy7py.
POR EL CONTRARIO (with Angela Aguilar & Leonardo Aguilar)
{"copyright_id":"0x9b0d13e9e48fb6c3ddca968a2803802a85805f71db153c05cb6da8138aa299cb","isrc":"USRC12302408","name":"POR EL CONTRARIO (with Angela Aguilar & Leonardo Aguilar)","registered_at":"2026-06-01T04:43:46Z","spotify_id":"6VsqdsaY4oV06NODea0L0J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0d13e9e48fb6c3ddca968a2803802a85805f71db153c05cb6da8138aa299cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6VsqdsaY4oV06NODea0L0J.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6VsqdsaY4oV06NODea0L0J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc978940ad405d4a5b67ed8d4fa1b33d646b8b504a9963e3e2d19298e4034315a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2cC85n2cTjlp3fLxZkgkqj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2cC85n2cTjlp3fLxZkgkqj.
{"copyright_id":"0x9248458189a8400cc42bcefca85a2647d05852eee2bf5fde55020ea97dd25410","isrc":"USVXU2100006","name":"Camino de Guanajuato","registered_at":"2026-06-06T19:24:32Z","spotify_id":"2XzgEjNt8dnL53FUh8ozqX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9248458189a8400cc42bcefca85a2647d05852eee2bf5fde55020ea97dd25410. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2XzgEjNt8dnL53FUh8ozqX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2XzgEjNt8dnL53FUh8ozqX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fddedb234631c114f4aac7f5f32134275936ca539f962a8f5340ee3b25b0cf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5PDfG5Nht0jPP3QP87mLSm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PDfG5Nht0jPP3QP87mLSm.
{"copyright_id":"0x267fe22fd50551d5d44416276ff3bb5a978a3a235a0b6edc125060a5516f89ca","isrc":"USVXU2100009","name":"Que Me Entierren Con la Banda","registered_at":"2026-06-04T14:19:51Z","spotify_id":"6EubqUdydkHdtnXStHOlVN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267fe22fd50551d5d44416276ff3bb5a978a3a235a0b6edc125060a5516f89ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EubqUdydkHdtnXStHOlVN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6EubqUdydkHdtnXStHOlVN.
{"copyright_id":"0xea629a830e2e554aa69248496734bbc3af812d18e9db5a7873e8ccaf85615ec2","isrc":"USVXU2100010","name":"México Lindo y Querido","registered_at":"2026-06-07T03:41:20Z","spotify_id":"6J0MUeAlG2LqL45PyyfASz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea629a830e2e554aa69248496734bbc3af812d18e9db5a7873e8ccaf85615ec2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6J0MUeAlG2LqL45PyyfASz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6J0MUeAlG2LqL45PyyfASz.
{"copyright_id":"0x2a80d4e1cdc92f5a09effde13ea5f7941afeb61a7d1cadcb2050d290fcd7bba1","isrc":"USVXU2000021","name":"Personal Jesus","registered_at":"2026-06-18T18:24:09Z","spotify_id":"4vmhp5YpOukFJWaXv5ahbX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a80d4e1cdc92f5a09effde13ea5f7941afeb61a7d1cadcb2050d290fcd7bba1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vmhp5YpOukFJWaXv5ahbX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4vmhp5YpOukFJWaXv5ahbX.
La Chancla / el Chivo / Puño de Tierra (En Vivo)
{"copyright_id":"0x5a372919d422827c4ad5a5979ebfb2a4a9c34b8d93c03720b35fcf241d26399d","isrc":"MX1721400528","name":"La Chancla / el Chivo / Puño de Tierra (En Vivo)","registered_at":"2026-06-04T15:14:09Z","spotify_id":"4ykmzBnsAlWN06gSCraH3t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a372919d422827c4ad5a5979ebfb2a4a9c34b8d93c03720b35fcf241d26399d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ykmzBnsAlWN06gSCraH3t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ykmzBnsAlWN06gSCraH3t.
{"copyright_id":"0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5","isrc":"USUM72310074","name":"Tuve Que Mentir","registered_at":"2026-06-09T08:38:50Z","spotify_id":"7mVKC0IMUcOa8IPEifQCJr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7mVKC0IMUcOa8IPEifQCJr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7mVKC0IMUcOa8IPEifQCJr.
{"copyright_id":"0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5","isrc":"USUM72310074","name":"Tuve Que Mentir","registered_at":"2026-06-09T08:38:50Z","spotify_id":"0cIiMZBKKoKtO6kbBRmmV8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0cIiMZBKKoKtO6kbBRmmV8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0cIiMZBKKoKtO6kbBRmmV8.
{"copyright_id":"0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5","isrc":"USUM72310074","name":"Tuve Que Mentir","registered_at":"2026-06-09T08:38:50Z","spotify_id":"5XL7qBzYV1ygw1jjN9HND4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb164e49e720b171848cf691adec89ba28e65becfd6dcf7a73765d3bb6ffe7f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5XL7qBzYV1ygw1jjN9HND4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5XL7qBzYV1ygw1jjN9HND4.
{"copyright_id":"0x9b0d13e9e48fb6c3ddca968a2803802a85805f71db153c05cb6da8138aa299cb","isrc":"USRC12302408","name":"POR EL CONTRARIO (with Angela Aguilar & Leonardo Aguilar)","registered_at":"2026-06-03T08:43:53Z","spotify_id":"2NlObgGJYcCmOyQ9xIkP9x","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0d13e9e48fb6c3ddca968a2803802a85805f71db153c05cb6da8138aa299cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NlObgGJYcCmOyQ9xIkP9x.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NlObgGJYcCmOyQ9xIkP9x.