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 0x49311ba06a63d2d5bf1483247301412e70c588cc98f3d7ecdd22503c1a10cda5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e25ac1d5-0132-48fb-9367-56cd52799840.json and https://artists.proofprofile.net/proofs/artist/e25ac1d5-0132-48fb-9367-56cd52799840.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xfc33b76d04ef192298483426fb3726cc9d6ad6b85ea0424e73ccc388c8af013a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1UKQdOpqkbOnWL2skvzpkc.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/1UKQdOpqkbOnWL2skvzpkc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc33b76d04ef192298483426fb3726cc9d6ad6b85ea0424e73ccc388c8af013a. 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/2IzB8Y4tmp0JtRp5j2dJjK.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/2IzB8Y4tmp0JtRp5j2dJjK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f34e960a8e82b8dcf03a693496de45c0a70d6b7ef3901908c51b6a88b7e0929. 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/23wEti8EXoIebmRxYmjTfS.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/23wEti8EXoIebmRxYmjTfS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f11b6fbd2900c0946861ef2830c42e42951038fe87949424f9c372c943b1e12. 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/5JGJ2Fan2jLA5tMQlixsHe.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/5JGJ2Fan2jLA5tMQlixsHe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8166072fb56740c255984a5933936d2094a83959864ee9fc6016ff76ec341a. 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/5fzvfzYVxfMYylU0vxp50l.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/5fzvfzYVxfMYylU0vxp50l.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89814bdc18daa58650ba5bc53ff9246a1750251b4cd93b9df309f839ea5cacc7. 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/6YcFaeEMDRMSRrgcF9Wn9h.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/6YcFaeEMDRMSRrgcF9Wn9h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb81d46fad4cc30d7c235a499a16b16faadfd894c0548dd837066cc66aa9802. 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/6zle5w64mEp8lslV07h5lv.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/6zle5w64mEp8lslV07h5lv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f54b3ab32000165a412a7b076f8fb19ead97f34f0af6479e3c5992dfbc606af. 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/4BEIQ5LVHHBhf5QAkOeAm0.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/4BEIQ5LVHHBhf5QAkOeAm0.
{"copyright_id":"0x1aef92330178e6a173d35862b4e35ca717ea2d1ecae5752fab2eabba2866869c","isrc":"USA951603350","name":"Oni Yalorde","registered_at":"2026-06-09T09:08:20Z","spotify_id":"5iz4vxakmdHfmZIyYdhp6P","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aef92330178e6a173d35862b4e35ca717ea2d1ecae5752fab2eabba2866869c. 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/5iz4vxakmdHfmZIyYdhp6P.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/5iz4vxakmdHfmZIyYdhp6P.
{"copyright_id":"0xfd05fbe1cf0caecadd0c89f5cb6b306abc4708780532f9c791be1aa48f5e0ff3","isrc":"USA951603360","name":"Peace Keeping","registered_at":"2026-06-20T08:53:17Z","spotify_id":"5fdLp0l1VIpwdIBDNueSPg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd05fbe1cf0caecadd0c89f5cb6b306abc4708780532f9c791be1aa48f5e0ff3. 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/5fdLp0l1VIpwdIBDNueSPg.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/5fdLp0l1VIpwdIBDNueSPg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded692263b73124680da7f2d9b376835b64ea8b066ab4d34392f7ded6f694718. 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/6r6o9UJXylxAmoAaTyCfSa.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/6r6o9UJXylxAmoAaTyCfSa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd796111f9805992345602324c4e93381536c1afdfda48680b117128233b86022. 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/72e3jjXfffsnBylZjwiGDY.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/72e3jjXfffsnBylZjwiGDY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa24a4d36b244e9542a09f7daede1877b1c99e5d72561366ceab9387b7a20f1. 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/0gESmXp0uf8cBUjv5sZZLJ.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/0gESmXp0uf8cBUjv5sZZLJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a8e1bb03fe5bdcd28678a05f3a42f7b4c55ff16ed8a74d4f34b0c55e95ba50. 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/2ZD2YxMPeiWPLQjViaunEc.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/2ZD2YxMPeiWPLQjViaunEc.
Omar Sosa & Yilian Cañizares - Live at Elbphilharmonie
Milonga, The S Vision (mixed by Simbad) - Remix
Dos Bendiciones, The Y Sound (mixed by Yohit) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4567a8f78fce6e1e4f08732d89a7df0a1adcccb4a2b54aa2933f0284dddba7. 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/3BmDKluxwX7pHxLBQDNj6I.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/3BmDKluxwX7pHxLBQDNj6I.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb489b215d364430f99d9c14bfdc8314d9acacf1cd8d378b827ceada1505ff9. 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/0OE4puWS99xAN8b29dBz8D.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/0OE4puWS99xAN8b29dBz8D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d68e08957e58419219871cb93c5d93aa0d3cfaf17e1dfb515c58163e1f2a64d. 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/2el42HUYmhCjVhuQDmbnae.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/2el42HUYmhCjVhuQDmbnae.
{"copyright_id":"0xda1d8023f04a8bbef5d050c20177fbb5c7d8faeca9613b8c430d5721fd415729","isrc":"GBCKG2100222","name":"Voices on the Sea","registered_at":"2026-06-27T08:39:21Z","spotify_id":"5yN4qDzTK3QjN4V99IfNiK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1d8023f04a8bbef5d050c20177fbb5c7d8faeca9613b8c430d5721fd415729. 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/5yN4qDzTK3QjN4V99IfNiK.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/5yN4qDzTK3QjN4V99IfNiK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd731a6f933aa43db497496ae83b3812368719a2f27d2bb687136e0d14fd3171. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Su2okKsHMmdW5govvpweH.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/2Su2okKsHMmdW5govvpweH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f4707434adad3d3e8c5b4e147e12c2f479606e8b17708012060d36c5b1d797. 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/25Q4uiq0HncVOssIcH0wPz.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/25Q4uiq0HncVOssIcH0wPz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd731a6f933aa43db497496ae83b3812368719a2f27d2bb687136e0d14fd3171. 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/6E0ahDGGbazNY9aHJTjcNW.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/6E0ahDGGbazNY9aHJTjcNW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907da3012c64bcf7ccd0d99b39cdc22c2874906d150071ab67882c3fef886a1f. 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/1n95V86OeygtG35RtvEggy.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/1n95V86OeygtG35RtvEggy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd69449f39c285f00d76e4ef25515783b6694a9988704e4f459456757085bb0f. 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/3fYk7Nay1NoboN8uEaDt8v.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/3fYk7Nay1NoboN8uEaDt8v.
Eleggua / Dame Un Tiempo - Pt. 1 - Live, Bremen, 2000
Eleggua / Dame Un Tiempo - Pt. 2 - Live, Bremen, 2000
Gracias Señor / Blanco En Africa - Pt. 1 - Live, Bremen, 2000
Gracias Señor / Blanco En Africa - Pt. 2 - Live, Bremen, 2000
CRISTIANO DE ANDRÉ and JAQUES MORELENBAUM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da7e9d6f23a9c5b759997b555eed003ac8641575239e0359542ccb6eae86860. 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/1tLFDpGppxFsncZ0UqBcue.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/1tLFDpGppxFsncZ0UqBcue.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579f718d934917acdad78be32104197d39d5597922f0eb0051f6ff1e6ba63e6d. 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/7j1nO0n3ouKx0XzQIvlUqJ.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/7j1nO0n3ouKx0XzQIvlUqJ.
{"copyright_id":"0x595eae037c1b21baea9f29ddfee79bba208f53f543ce631c5fca5b64a1ed4229","isrc":"ITZ682301008","name":"Yuca y Magnoca","registered_at":"2026-06-27T10:04:23Z","spotify_id":"3gOgwB3kgXvEDIrDo1mAOs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595eae037c1b21baea9f29ddfee79bba208f53f543ce631c5fca5b64a1ed4229. 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/3gOgwB3kgXvEDIrDo1mAOs.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/3gOgwB3kgXvEDIrDo1mAOs.