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 0xc3f52b95443f584d2d52dcba7ab33aa192fa180c532f0f3fa07e18a56730477e. 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/79017bbc-fab8-4cf4-9f6b-205f56b8347e.json and https://artists.proofprofile.net/proofs/artist/79017bbc-fab8-4cf4-9f6b-205f56b8347e.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 0xfe666714d0241567c6da39836aa6d9ad9f5a322aa686933df0e568e55e02b80a. 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/3XTmOwWk9zGehWbMzvOnex.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/3XTmOwWk9zGehWbMzvOnex.
{"copyright_id":"0xc1a88d50b79408b710f357e4965ccfd074ff69187bf3e3ba2021282d160da1f8","isrc":"MXF152000322","name":"Cuenta Conmigo (feat. Mozart La Para)","registered_at":"2026-06-04T09:09:35Z","spotify_id":"6uOkrwja4QG6KjHBRaAXD4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a88d50b79408b710f357e4965ccfd074ff69187bf3e3ba2021282d160da1f8. 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/6uOkrwja4QG6KjHBRaAXD4.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/6uOkrwja4QG6KjHBRaAXD4.
LENTO (with Sean Paul & Mozart La Para feat. Cazzu)
NEON16 TAPE: THE KIDS THAT GREW UP ON REGGAETON
{"copyright_id":"0xa60b27802fba2c3f7b95cddec3c5c3a870f0b697cd415479e262bb700a83d22b","isrc":"QMJMT1902564","name":"LENTO (with Sean Paul & Mozart La Para feat. Cazzu)","registered_at":"2026-06-06T03:16:32Z","spotify_id":"7k3WOO7KVwWKU94PNWxSsY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60b27802fba2c3f7b95cddec3c5c3a870f0b697cd415479e262bb700a83d22b. 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/7k3WOO7KVwWKU94PNWxSsY.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/7k3WOO7KVwWKU94PNWxSsY.
{"copyright_id":"0x665bad9036e7a9dc24f286d8bf1f0b7a76ff308cefec6ecc28e5160f8845d8e5","isrc":"QM4TX2398930","name":"BRINQUEN - REMIX","registered_at":"2026-06-04T13:25:50Z","spotify_id":"7cVYjeUYgWD2NmIlQ4S4hh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665bad9036e7a9dc24f286d8bf1f0b7a76ff308cefec6ecc28e5160f8845d8e5. 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/7cVYjeUYgWD2NmIlQ4S4hh.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/7cVYjeUYgWD2NmIlQ4S4hh.
{"copyright_id":"0xdd001c22ce5bac5b6d70b4344c23c6bb41bbfe8f79949e188284d20917af537e","isrc":"QMBZ91708693","name":"Va Tene Que Vola","registered_at":"2026-06-06T22:52:32Z","spotify_id":"76muVzojQZjVf2RhqRTOsu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd001c22ce5bac5b6d70b4344c23c6bb41bbfe8f79949e188284d20917af537e. 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/76muVzojQZjVf2RhqRTOsu.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/76muVzojQZjVf2RhqRTOsu.
{"copyright_id":"0x9e6dae67f7f984ffac0cafeda10859bf7a5d66c6627217440cf090a97fad2bd3","isrc":"QZ7R41750696","name":"Lacoste - Remix","registered_at":"2026-06-20T22:57:54Z","spotify_id":"0spIwv7qLGhrW23x9eO5HH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6dae67f7f984ffac0cafeda10859bf7a5d66c6627217440cf090a97fad2bd3. 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/0spIwv7qLGhrW23x9eO5HH.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/0spIwv7qLGhrW23x9eO5HH.
Latino 56 - Salsa Bachata Merengue Reggaeton (Latin Hits)
{"copyright_id":"0xa60b27802fba2c3f7b95cddec3c5c3a870f0b697cd415479e262bb700a83d22b","isrc":"QMJMT1902564","name":"LENTO (with Sean Paul & Mozart La Para feat. Cazzu)","registered_at":"2026-06-06T03:16:32Z","spotify_id":"6C14lSqG64BEBoSLhttx6m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60b27802fba2c3f7b95cddec3c5c3a870f0b697cd415479e262bb700a83d22b. 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/6C14lSqG64BEBoSLhttx6m.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/6C14lSqG64BEBoSLhttx6m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f99f0240930a4f2cfc8c015e1371668fbbeea28545cb52c1d68f0f6e1f05999. 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/0RYRX4bWykxlbDdonBnjmg.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/0RYRX4bWykxlbDdonBnjmg.
{"copyright_id":"0xfbb0a8d89f9220a1f7772c51402fbf1ec5f8fdd9d9485f38c661cbc9485eeb6e","isrc":"USB271500914","name":"Chikiribón (feat. Mozart La Para)","registered_at":"2026-06-08T02:14:50Z","spotify_id":"4OCVxIYzcZBuTMFSXVyvoJ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb0a8d89f9220a1f7772c51402fbf1ec5f8fdd9d9485f38c661cbc9485eeb6e. 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/4OCVxIYzcZBuTMFSXVyvoJ.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/4OCVxIYzcZBuTMFSXVyvoJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd3f75579c042ad2a358b1c76f45669906fe9da6ca950a48a07dd079104ede2. 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/5sh6EYvkmuT9OobbNAC3uH.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/5sh6EYvkmuT9OobbNAC3uH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2238cb3e420454ddd28d527a5063ef4c650115c3c71474263bc7056ac59312cf. 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/1nBA795YhyTO5992WmhEzW.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/1nBA795YhyTO5992WmhEzW.
{"copyright_id":"0xdc9819dcf22273ba381633b38bca6ded93de2b810e758848d910ec962408ccdb","isrc":"QMHUY1558419","name":"Si Te Pego Cuerno","registered_at":"2026-06-04T11:03:08Z","spotify_id":"1LCzvEFx3K8ZDWhN45Svg1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9819dcf22273ba381633b38bca6ded93de2b810e758848d910ec962408ccdb. 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/1LCzvEFx3K8ZDWhN45Svg1.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/1LCzvEFx3K8ZDWhN45Svg1.
{"copyright_id":"0xc1a88d50b79408b710f357e4965ccfd074ff69187bf3e3ba2021282d160da1f8","isrc":"MXF152000322","name":"Cuenta Conmigo (feat. Mozart La Para)","registered_at":"2026-06-04T09:09:35Z","spotify_id":"3KvK89jd2onVdthF4hZNN4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a88d50b79408b710f357e4965ccfd074ff69187bf3e3ba2021282d160da1f8. 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/3KvK89jd2onVdthF4hZNN4.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/3KvK89jd2onVdthF4hZNN4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf91434e8f634b428f95207cf334ee923f26b585b72b2db0af488820ec19a5d7. 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/7toR0V2tWDjzMPSUOqITjv.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/7toR0V2tWDjzMPSUOqITjv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b23ceeea06c75117ec119d60fb12f0a5231d0e5ddb3a5e8866580805ca9501. 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/3d2JQX7krunAaZ07gtQhCG.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/3d2JQX7krunAaZ07gtQhCG.