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 0xf976f1bc6d9425afe9c2e93cff4b2a688c73d8634986471aab8617904087a7ff. 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/9597426d-02da-42da-bb42-fbcad158919a.json and https://artists.proofprofile.net/proofs/artist/9597426d-02da-42da-bb42-fbcad158919a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe9c1967e1780d93d5dfc59322abcafd74fec0f670f5c0547968dcccb5e611d30","isrc":"MXUM72201412","name":"Soy Mexicano","registered_at":"2026-06-29T22:08:29Z","spotify_id":"4gjczSABFBHa4qiF2vipa5","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 0xe9c1967e1780d93d5dfc59322abcafd74fec0f670f5c0547968dcccb5e611d30. 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/4gjczSABFBHa4qiF2vipa5.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/4gjczSABFBHa4qiF2vipa5.
{"copyright_id":"0x5f93f21a9666879dac1b7eb223ee1aa9355a0d2beec7ace6a4cb18b7560c1bf5","isrc":"MXUM72201807","name":"Ebrio De Amor","registered_at":"2026-06-26T16:50:10Z","spotify_id":"3IcTqBw7XvS0oErBRVt3WL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f93f21a9666879dac1b7eb223ee1aa9355a0d2beec7ace6a4cb18b7560c1bf5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IcTqBw7XvS0oErBRVt3WL.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/3IcTqBw7XvS0oErBRVt3WL.
Culpable Soy Yo - En Vivo Desde El Rancho
{"copyright_id":"0x462bd9e2d00e2eab1b6f653483ea03bfacd243883afa4afe573023e43e860723","isrc":"QM2EJ1500811","name":"Culpable Soy Yo - En Vivo Desde El Rancho","registered_at":"2026-06-05T22:44:58Z","spotify_id":"5GJQBcLwgSldwHYgQJLIgB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462bd9e2d00e2eab1b6f653483ea03bfacd243883afa4afe573023e43e860723. 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/5GJQBcLwgSldwHYgQJLIgB.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/5GJQBcLwgSldwHYgQJLIgB.
{"copyright_id":"0xf111d37c29c6b0d89b3ceda7cf4c1d09e6beb85889f657f64e6c1d6af7219e34","isrc":"QM2EJ1500818","name":"Fe Perdida - En Vivo Desde El Rancho","registered_at":"2026-06-09T18:26:53Z","spotify_id":"7fert3hdN8jBZLI8yeaWwq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf111d37c29c6b0d89b3ceda7cf4c1d09e6beb85889f657f64e6c1d6af7219e34. 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/7fert3hdN8jBZLI8yeaWwq.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/7fert3hdN8jBZLI8yeaWwq.
¿Cómo Te Atreves? (Con Neto Bernal, Geru Y Su Legión 7) [Versión Acústica]
{"copyright_id":"0x7962369d3855a3b72aa10192fbe85d0cd7aa4bdba47567eb8bd5e1de43300db0","isrc":"USUM71923990","name":"¿Cómo Te Atreves? - Versión Acústica","registered_at":"2026-06-27T08:24:28Z","spotify_id":"6HfdX4bP7DFQKo8FMGj1pf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7962369d3855a3b72aa10192fbe85d0cd7aa4bdba47567eb8bd5e1de43300db0. 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/6HfdX4bP7DFQKo8FMGj1pf.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/6HfdX4bP7DFQKo8FMGj1pf.
Señora, Señora (Con Cristian Jacobo, Geru Y Su Legión 7
{"copyright_id":"0xdbf7225809495e1bf08a083c7bf23b970c014ae685812733c2eaa3db82faa9cf","isrc":"USUM71923571","name":"Señora, Señora","registered_at":"2026-06-07T14:24:45Z","spotify_id":"73plZywgwAOAAQsxZlT38I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf7225809495e1bf08a083c7bf23b970c014ae685812733c2eaa3db82faa9cf. 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/73plZywgwAOAAQsxZlT38I.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/73plZywgwAOAAQsxZlT38I.
¿Cómo Te Atreves? (Con Cheyo Carrillo, Geru Y Su Legión 7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b144a5a575cd5f9e3b8709d7a4a88f1cd05d4f45e94adbe965ca4b44af3bc0f. 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/28k8zUv3viH8W3nS4h03aC.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/28k8zUv3viH8W3nS4h03aC.