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 0x69e31244b5d686a9836373fed1980cd3ac287444197c96ecc768af6a0d6b7ed4. 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/2cdeb1e1-01d5-4a21-b562-7413188ea5ce.json and https://artists.proofprofile.net/proofs/artist/2cdeb1e1-01d5-4a21-b562-7413188ea5ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x6208139a19c9e0cc7903157c4d5a4cbc220e3fcea26ffb894fd708e83fda199a","isrc":"USUM72313435","name":"Corazón Roto pt. 3","registered_at":"2026-06-01T08:03:11Z","spotify_id":"3LzAFrnO7CxaeBgtQhHsAP","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 0x6208139a19c9e0cc7903157c4d5a4cbc220e3fcea26ffb894fd708e83fda199a. 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/3LzAFrnO7CxaeBgtQhHsAP.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/3LzAFrnO7CxaeBgtQhHsAP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0379cc390b73340d0a237cdc15aec6db71f6387c4a11e7ff10b7425bc80e196. 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/6q6aChVJ5LLXFUSfakwpxW.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/6q6aChVJ5LLXFUSfakwpxW.
{"copyright_id":"0x17cad073c7bf2e775b9211bac2162ff2fd6bf1da806a18e3c868f27f4aadb7c6","isrc":"QM6MZ2214877","name":"Me Porto Bonito","registered_at":"2026-06-01T03:06:40Z","spotify_id":"6Sq7ltF9Qa7SNFBsV5Cogx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cad073c7bf2e775b9211bac2162ff2fd6bf1da806a18e3c868f27f4aadb7c6. 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/6Sq7ltF9Qa7SNFBsV5Cogx.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/6Sq7ltF9Qa7SNFBsV5Cogx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030d7f7115b68f8168a951ae84c955e232a3b7d0ee6ed717642bc75bdb70a8fa. 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/6mmPpaltUZK7xjNlBPQQ0p.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/6mmPpaltUZK7xjNlBPQQ0p.
{"copyright_id":"0xbc955ed8b14a3c7f3fcf6102ee808244feb79c14a50524ed336a70a431c320d6","isrc":"USA2P2328139","name":"CORLEONE INTERLUDE","registered_at":"2026-06-02T00:16:02Z","spotify_id":"3d5eu5ciBKSU9ZpjRL4RWY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc955ed8b14a3c7f3fcf6102ee808244feb79c14a50524ed336a70a431c320d6. 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/3d5eu5ciBKSU9ZpjRL4RWY.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/3d5eu5ciBKSU9ZpjRL4RWY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4120ec2df8348683724fd09c79657fa10dccb8fd53428ddd05b9be3e656e3. 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/2XNtRxyRdSdhNLMJAeq8nS.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/2XNtRxyRdSdhNLMJAeq8nS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483974129b68710a2731f4cdd420a0f9a6a7a4aa54ca36e5fa77fb76a78f5b1e. 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/1B2T2cJUdA4tRKY9Z18eKB.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/1B2T2cJUdA4tRKY9Z18eKB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bef06f3594a7b1e5fc8eae4f375127a4cf33d5cbde4819f77449346acd31405. 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/07oas8KpAMIkwuetf81Zen.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/07oas8KpAMIkwuetf81Zen.
{"copyright_id":"0x7658fb04252342f16c4052bfcb6467aeaf3f25793b94a1a105d6c51d4e4f53fb","isrc":"QMFME2362297","name":"LOCO X PERREARTE","registered_at":"2026-06-04T09:38:36Z","spotify_id":"5gKvWgsNdivgj8XPSAMxOE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7658fb04252342f16c4052bfcb6467aeaf3f25793b94a1a105d6c51d4e4f53fb. 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/5gKvWgsNdivgj8XPSAMxOE.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/5gKvWgsNdivgj8XPSAMxOE.
A Quema Ropa (feat. Chencho Corleone & Cosculluela)
{"copyright_id":"0x68df44823d28515c73e420173b078243117b67f0ab0da76853ce8f5f4969f4cc","isrc":"USCSX1500104","name":"A Quema Ropa (feat. Chencho Corleone & Cosculluela)","registered_at":"2026-06-05T05:13:00Z","spotify_id":"26TABXjEC1rTkPpdjM1fjd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df44823d28515c73e420173b078243117b67f0ab0da76853ce8f5f4969f4cc. 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/26TABXjEC1rTkPpdjM1fjd.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/26TABXjEC1rTkPpdjM1fjd.
{"copyright_id":"0x09e3159888e3df4b2dc82b7c21eff582d16eaa0c368a0a08851c606699a37efe","isrc":"USUM72008053","name":"El Querendón","registered_at":"2026-06-09T07:18:46Z","spotify_id":"0OlzLoz5xh2dzAEaZOJYee","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e3159888e3df4b2dc82b7c21eff582d16eaa0c368a0a08851c606699a37efe. 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/0OlzLoz5xh2dzAEaZOJYee.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/0OlzLoz5xh2dzAEaZOJYee.
Concierto Virtual en Tiempos de COVID-19 Desde el Coliseo de Puerto Rico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66198067e7db35217c9fd06ec101fab851dce0cc91fe0e56ab67f4d87f6f488. 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/00lSB6dw16MKdBZXVS9nRm.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/00lSB6dw16MKdBZXVS9nRm.
{"copyright_id":"0x8c9d02b95072e4f0f510e992dc352132a66e2ae70fae6ef880a45e73fae2cc4b","isrc":"USUM72201829","name":"La Llevo Al Cielo","registered_at":"2026-06-01T05:53:18Z","spotify_id":"5CkMZ5W6o0OlULDG8KfLox","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9d02b95072e4f0f510e992dc352132a66e2ae70fae6ef880a45e73fae2cc4b. 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/5CkMZ5W6o0OlULDG8KfLox.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/5CkMZ5W6o0OlULDG8KfLox.
{"copyright_id":"0x68df44823d28515c73e420173b078243117b67f0ab0da76853ce8f5f4969f4cc","isrc":"USCSX1500104","name":"A Quema Ropa (feat. Chencho Corleone & Cosculluela)","registered_at":"2026-06-05T05:13:00Z","spotify_id":"4dX9pMIDJohEwGChkFY5AO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68df44823d28515c73e420173b078243117b67f0ab0da76853ce8f5f4969f4cc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dX9pMIDJohEwGChkFY5AO.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/4dX9pMIDJohEwGChkFY5AO.
{"copyright_id":"0xad6c1812c11df71f7de8c42e6efdd6b19aa99c0ab1184d31bdb2ec2ad3e41116","isrc":"ESA012281018","name":"Me Hablas Claro","registered_at":"2026-06-06T06:01:08Z","spotify_id":"2qan22xMzr8iC8Jx2RAj9c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6c1812c11df71f7de8c42e6efdd6b19aa99c0ab1184d31bdb2ec2ad3e41116. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qan22xMzr8iC8Jx2RAj9c.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/2qan22xMzr8iC8Jx2RAj9c.