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 0x089220f34d9e97538ae6144da4dab573780210e31a916ff0fc48e2853b450e6a. 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/f67952c5-1fd2-45d0-bafb-46b0eaa21073.json and https://artists.proofprofile.net/proofs/artist/f67952c5-1fd2-45d0-bafb-46b0eaa21073.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Boleros De America Con Orquesta Y Guitarra Espanola
{"copyright_id":"0x6f637108d058c38233a480fdaa37dfaaef6fd150f5d18e809afe4b41669d872d","isrc":"QM6DC1574629","name":"Noche De Ronda","registered_at":"2026-06-04T12:55:40Z","spotify_id":"3Acx3YzbJpjNHadqVekAcQ","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 0x6f637108d058c38233a480fdaa37dfaaef6fd150f5d18e809afe4b41669d872d. 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/3Acx3YzbJpjNHadqVekAcQ.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/3Acx3YzbJpjNHadqVekAcQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa40665bbad7c6700900b237a4144efcb61998ff802fa97365c28de4da20d2ef. 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/1KmwQPSujILgPE364DlsHY.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/1KmwQPSujILgPE364DlsHY.
{"copyright_id":"0x75a9f8427f6f8532316b2c9ab690fc8f3278e9e8ef02ce09e4ceef7b68a13bf8","isrc":"QM6DC1574631","name":"Moliendo Cafe","registered_at":"2026-06-04T15:07:13Z","spotify_id":"4CGcyEEgvPJaBCJ5AmewoD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a9f8427f6f8532316b2c9ab690fc8f3278e9e8ef02ce09e4ceef7b68a13bf8. 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/4CGcyEEgvPJaBCJ5AmewoD.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/4CGcyEEgvPJaBCJ5AmewoD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98423f92702911d7177ff2d3cd160877612cfebdfa570af04a4cd3069c6c3e90. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:53:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4i9Y5G0iOFU4hfkJB9FNJN.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/4i9Y5G0iOFU4hfkJB9FNJN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76281e4cd708217182e7568a90549d657b7b5e28b2a4daf522d2cc0bde32d798. 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/0E2Mv5fAj0K3XnibUarr69.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/0E2Mv5fAj0K3XnibUarr69.
{"copyright_id":"0x0bb7036b692182a1e7a2fea250d47506df9eeedaae722c6cc84a5bab7c25e87a","isrc":"QM6DC1574634","name":"Contigo Aprendi","registered_at":"2026-06-05T15:35:21Z","spotify_id":"6Zn42dszMg0T8AtPz49wOo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb7036b692182a1e7a2fea250d47506df9eeedaae722c6cc84a5bab7c25e87a. 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/6Zn42dszMg0T8AtPz49wOo.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/6Zn42dszMg0T8AtPz49wOo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffe13f2664999d1a64a170da872cf31dd0d96c678a737b54686fec8e38b535f. 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/3tL8Yy74zqg5XQZ4xAF6Pb.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/3tL8Yy74zqg5XQZ4xAF6Pb.
{"copyright_id":"0x2270eeb6ee698d6fe9bac09e5609db062c97decb527b9356f0325baec26e8eb7","isrc":"QM6DC1574636","name":"Lamento Borincano","registered_at":"2026-06-07T04:58:38Z","spotify_id":"5LkrKjP7dPsbbqfD7MqKVx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2270eeb6ee698d6fe9bac09e5609db062c97decb527b9356f0325baec26e8eb7. 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/5LkrKjP7dPsbbqfD7MqKVx.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/5LkrKjP7dPsbbqfD7MqKVx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74b6088ffdb9cc3b17613443e3968309dcb1680a00cc2b9f1b79c6736d10296. 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/3LsjUow9EY8JzsHNaFuQAF.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/3LsjUow9EY8JzsHNaFuQAF.
{"copyright_id":"0x36898b14b7abd357622720405786ebcf9cfc57807efd12475ca8c18d78ab87f4","isrc":"QM6DC1574638","name":"Cuando Vuelva A Tu Lado","registered_at":"2026-06-04T16:34:43Z","spotify_id":"5zqjtSzbegSkyei1Wvxs9o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36898b14b7abd357622720405786ebcf9cfc57807efd12475ca8c18d78ab87f4. 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/5zqjtSzbegSkyei1Wvxs9o.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/5zqjtSzbegSkyei1Wvxs9o.
{"copyright_id":"0xf921c97d736260dd2fce9844caef841bb25cd733224e83ef01c91e1ea0500630","isrc":"QM6DC1574639","name":"Recuerdos De Ipacarai","registered_at":"2026-06-07T23:56:34Z","spotify_id":"7qQxzL2vXbBaVoWMoYyZlu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf921c97d736260dd2fce9844caef841bb25cd733224e83ef01c91e1ea0500630. 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/7qQxzL2vXbBaVoWMoYyZlu.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/7qQxzL2vXbBaVoWMoYyZlu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2e41c691541af00c1faf02b1e524747977c37ae7823963431c49f9310bd6ea. 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/25WkQ79SUkniDt0NNs4YnE.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/25WkQ79SUkniDt0NNs4YnE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf855197e7b601d40350dcc0c20383d17a6db3dc7ff39d0e54d072ea3e8ece9c. 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/5qsHp4JGCZT8C31zsxkuFd.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/5qsHp4JGCZT8C31zsxkuFd.
{"copyright_id":"0x785ffa5fdd46b1607cf15b7717cecb222d0bf57730d0e67912aa5a0f8db096c6","isrc":"QM6DC1574642","name":"Ojos Espanoles","registered_at":"2026-06-06T07:49:07Z","spotify_id":"6s9g8ts4EkJeCB0HrxdRuq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785ffa5fdd46b1607cf15b7717cecb222d0bf57730d0e67912aa5a0f8db096c6. 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/6s9g8ts4EkJeCB0HrxdRuq.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/6s9g8ts4EkJeCB0HrxdRuq.
{"copyright_id":"0x833acdf8eb2489af25bde02fbb2dafe4e4d021ab8e1734f70cc401ab7b0627dc","isrc":"QM6DC1574643","name":"Alma Llanera","registered_at":"2026-06-05T19:36:26Z","spotify_id":"5SDaZKK2J1vFUc5lSolzZ8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833acdf8eb2489af25bde02fbb2dafe4e4d021ab8e1734f70cc401ab7b0627dc. 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/5SDaZKK2J1vFUc5lSolzZ8.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/5SDaZKK2J1vFUc5lSolzZ8.
{"copyright_id":"0x5bfe46d4671764167ae3e08dbe7069b7a6cd3967dac041fec31f2d120ba43a71","isrc":"QM6DC1574644","name":"Alfonsina Y El Mar","registered_at":"2026-06-08T09:05:54Z","spotify_id":"6Vmu9hglAKpfelIgNRDGU7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe46d4671764167ae3e08dbe7069b7a6cd3967dac041fec31f2d120ba43a71. 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/6Vmu9hglAKpfelIgNRDGU7.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/6Vmu9hglAKpfelIgNRDGU7.