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 0x2a37f38026e8cd48dcb60c6630d054bf66991f4aa26dc9da90116fef4b0e9cf7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5151504b-0324-4aaa-99e8-c263de42ea8a.json and https://artists.proofprofile.net/proofs/artist/5151504b-0324-4aaa-99e8-c263de42ea8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe82e3711b72a0deeb4d690e98c6b3f55cad317fb004871a3750b8f59f4cfea2e","isrc":"QM4TW2086078","name":"El Compa","registered_at":"2026-06-29T07:58:50Z","spotify_id":"1JdCyWCCVNoicgK4K42fbf","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 0xe82e3711b72a0deeb4d690e98c6b3f55cad317fb004871a3750b8f59f4cfea2e. 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/1JdCyWCCVNoicgK4K42fbf.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/1JdCyWCCVNoicgK4K42fbf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e13182a008d2cd6e1eefc78907c6731309e4270c0ea7747c6998331d77d72fd. 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/2fnoj2fTm4bk9pJF0pwpYL.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/2fnoj2fTm4bk9pJF0pwpYL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1490d64b191189e0c0fd30a563d035311f6ade3d7ee565b9b6a1574003ac05f1. 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/6ufuTyUwOCSzZGgywQoRpw.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/6ufuTyUwOCSzZGgywQoRpw.
Que Nadie Sepa Mi Sufrir aka La Foule Amor De Mis Amores
{"copyright_id":"0x600deacce05615d3fd9dddb746fcccab957552ee8ab1f87514364b8475e5efb3","isrc":"USUM71200702","name":"¿Qué Caso Tiene?","registered_at":"2026-06-29T19:50:14Z","spotify_id":"7oQjUH3JZTGTMpUynMBAHB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600deacce05615d3fd9dddb746fcccab957552ee8ab1f87514364b8475e5efb3. 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/7oQjUH3JZTGTMpUynMBAHB.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/7oQjUH3JZTGTMpUynMBAHB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f74f8cee0b92632b9684f26bc2cd7e54138484ff097f764d7c1bb1e70968d0e. 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/1YY9VMAEdbh70x1zIUCfrz.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/1YY9VMAEdbh70x1zIUCfrz.
{"copyright_id":"0xe7db2e5352ab729491fe87db5c0778024f949dd6de964fd98a391f8dcbf573d6","isrc":"QM6DC1500020","name":"Si Preguntan por Ti","registered_at":"2026-06-29T07:59:16Z","spotify_id":"6rOXmaVikJifxaVgCgE06j","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7db2e5352ab729491fe87db5c0778024f949dd6de964fd98a391f8dcbf573d6. 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/6rOXmaVikJifxaVgCgE06j.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/6rOXmaVikJifxaVgCgE06j.
{"copyright_id":"0x0c6b5bb762212aabc9c5a6c52b3f9dc80cdc9c1f57cb810558ea48bac232e0b2","isrc":"QM6DC1500021","name":"Dime Dime","registered_at":"2026-06-29T08:01:43Z","spotify_id":"497h9vfkByMAQBK5mfXe2F","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6b5bb762212aabc9c5a6c52b3f9dc80cdc9c1f57cb810558ea48bac232e0b2. 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/497h9vfkByMAQBK5mfXe2F.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/497h9vfkByMAQBK5mfXe2F.
Obra de Arte (feat. Los Carnales de Nuevo León)
{"copyright_id":"0x963e47f2bdee22f960006e54db0eadbed7b9c9bac575eeb27ee5d8d2e991222f","isrc":"QM6DC1900022","name":"Noche Plateada","registered_at":"2026-06-29T07:46:05Z","spotify_id":"71CYDZs3g9RaQ11polWmE0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963e47f2bdee22f960006e54db0eadbed7b9c9bac575eeb27ee5d8d2e991222f. 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/71CYDZs3g9RaQ11polWmE0.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/71CYDZs3g9RaQ11polWmE0.
{"copyright_id":"0xdd23e17ac5cb7a3fc4b19334144eaee883178419daa01110dec9a0cfc8268678","isrc":"QM6DC2087583","name":"Entre Golpes y Besos - En Vivo","registered_at":"2026-06-29T07:45:47Z","spotify_id":"5TTqaAQxMWEnqMPz0DI3sT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23e17ac5cb7a3fc4b19334144eaee883178419daa01110dec9a0cfc8268678. 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/5TTqaAQxMWEnqMPz0DI3sT.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/5TTqaAQxMWEnqMPz0DI3sT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41b57337787bd2691629bdb8302b94aa8b2780d1c12998ef2df9adc8b20545a. 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/0tqZhAQQTfYlidknepjMV4.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/0tqZhAQQTfYlidknepjMV4.
{"copyright_id":"0x6d2e301ffcc8b945def5e65e5459bd02bc91f6e4bd0580988b3e4e7e4d65c427","isrc":"QZNFJ2214473","name":"De Haber Sabido","registered_at":"2026-06-29T08:02:07Z","spotify_id":"5SHRzrzLzfpyNahtlOK6JV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2e301ffcc8b945def5e65e5459bd02bc91f6e4bd0580988b3e4e7e4d65c427. 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/5SHRzrzLzfpyNahtlOK6JV.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/5SHRzrzLzfpyNahtlOK6JV.
{"copyright_id":"0x237d9ad8afdd784cd80293cc28dcd353c8b11c658b2fe5f012a01c7ee6e81816","isrc":"QZNJV2477887","name":"Cumbia Morena","registered_at":"2026-06-29T07:59:36Z","spotify_id":"7pQ05GHIpIPoFpBSoSqocH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d9ad8afdd784cd80293cc28dcd353c8b11c658b2fe5f012a01c7ee6e81816. 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/7pQ05GHIpIPoFpBSoSqocH.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/7pQ05GHIpIPoFpBSoSqocH.
{"copyright_id":"0x32676ca9355cabcd2fb7b23d0ce464b2ec1d6cfaedb644764c6f2f2162270d5e","isrc":"US7VG2574066","name":"Me Encantaría","registered_at":"2026-06-04T09:06:29Z","spotify_id":"2VSp3oMwP310IDzqYzKXaW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32676ca9355cabcd2fb7b23d0ce464b2ec1d6cfaedb644764c6f2f2162270d5e. 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/2VSp3oMwP310IDzqYzKXaW.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/2VSp3oMwP310IDzqYzKXaW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073de82505991ea8e1e7abc552891e26aef6825bb13a044641e72ad635b58efb. 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/588moD6H131GLJftpSY3bu.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/588moD6H131GLJftpSY3bu.
{"copyright_id":"0x4ab9fa9ae869f81111fc627492c4ed8cf42d54048e74687af71682673f4250df","isrc":"US4H30700400","name":"Traigo La Muerte A Mi Lado","registered_at":"2026-06-07T12:23:59Z","spotify_id":"7JC9HNUfAghTmOFIG4nsr5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab9fa9ae869f81111fc627492c4ed8cf42d54048e74687af71682673f4250df. 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/7JC9HNUfAghTmOFIG4nsr5.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/7JC9HNUfAghTmOFIG4nsr5.
{"copyright_id":"0x41104a6ee82f1f38311bd3a352e4345efebf56a707a622af30d2e28935be8a9b","isrc":"US3DF1938685","name":"Quiero ser","registered_at":"2026-06-06T03:12:28Z","spotify_id":"3XShyUHgvNJtTEuOt0tyrN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41104a6ee82f1f38311bd3a352e4345efebf56a707a622af30d2e28935be8a9b. 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/3XShyUHgvNJtTEuOt0tyrN.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/3XShyUHgvNJtTEuOt0tyrN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c650883e31c084be2801531ef8eb5fd9873e0b5a225a2ba757356fdb803e2. 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/36faq5vfLasiaIu8A13uQh.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/36faq5vfLasiaIu8A13uQh.
{"copyright_id":"0x7db66355238c0b3df10b4f0faebe0f2abec26190fe2b10bc627f5486bb287ed7","isrc":"US3DF1938689","name":"Limondadas verdes","registered_at":"2026-06-20T23:07:30Z","spotify_id":"3scLzPPO4T459QLPxpl5jb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db66355238c0b3df10b4f0faebe0f2abec26190fe2b10bc627f5486bb287ed7. 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/3scLzPPO4T459QLPxpl5jb.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/3scLzPPO4T459QLPxpl5jb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f91d7bf818af43655cb66acdcded50ff43eb67401b2da093561ba6a56688082. 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/4KAurc8nbS2yvd6XTpE969.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/4KAurc8nbS2yvd6XTpE969.
{"copyright_id":"0xa598350edb2873eb5b3e276ce3650e1cdcf65fa58fdff8f933919cf69895429f","isrc":"USA2P2336389","name":"Todo Porque Te Amo","registered_at":"2026-06-09T18:31:14Z","spotify_id":"69MpeEiXYfZqsBePoNBG7r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa598350edb2873eb5b3e276ce3650e1cdcf65fa58fdff8f933919cf69895429f. 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/69MpeEiXYfZqsBePoNBG7r.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/69MpeEiXYfZqsBePoNBG7r.