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 0xb4d6019e4479ccdde5f737ceb2d8c3c6047b69e26890bdbe854e106283c96d26. 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/2b75956d-1146-4051-b5cd-ca07c3097701.json and https://artists.proofprofile.net/proofs/artist/2b75956d-1146-4051-b5cd-ca07c3097701.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xead6334b35f3af5bc0303c9fcfecb76b4fcfc9c89278210c0d5832301ea46dad","isrc":"QZMER2067596","name":"Porque Te Marchaste","registered_at":"2026-06-27T21:31:38Z","spotify_id":"4hlcKVGm7nlTh62U6nZDEg","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 0xead6334b35f3af5bc0303c9fcfecb76b4fcfc9c89278210c0d5832301ea46dad. 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/4hlcKVGm7nlTh62U6nZDEg.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/4hlcKVGm7nlTh62U6nZDEg.
{"copyright_id":"0x49f0076c90cee2bbecff4f40c32eb7acafbe73396f4cb2baff29adf502b2c1f8","isrc":"QZMER2067597","name":"Si Señor Yo Soy Jaimico","registered_at":"2026-06-05T23:59:40Z","spotify_id":"4UyHu5PkCZWGTPhhHuOV9L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f0076c90cee2bbecff4f40c32eb7acafbe73396f4cb2baff29adf502b2c1f8. 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/4UyHu5PkCZWGTPhhHuOV9L.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/4UyHu5PkCZWGTPhhHuOV9L.
{"copyright_id":"0x5ed62a37d070bef824ce1bf90eb95eddec24b04c27e03057cf92762cc4678ba5","isrc":"QZMER2067598","name":"Siempre Van Hablar","registered_at":"2026-06-26T09:19:14Z","spotify_id":"2uaCbPBh5TDTzv3EO8w4BI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed62a37d070bef824ce1bf90eb95eddec24b04c27e03057cf92762cc4678ba5. 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/2uaCbPBh5TDTzv3EO8w4BI.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/2uaCbPBh5TDTzv3EO8w4BI.
{"copyright_id":"0xcd51dbef7c1a698a3264c576fd678db5af37fbce30e7453347c7cfb31861eafa","isrc":"BK4DA2416347","name":"Prueba De Fuego","registered_at":"2026-06-19T19:46:47Z","spotify_id":"1MXVYiZJLvN6MweFSs0wKb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd51dbef7c1a698a3264c576fd678db5af37fbce30e7453347c7cfb31861eafa. 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/1MXVYiZJLvN6MweFSs0wKb.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/1MXVYiZJLvN6MweFSs0wKb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d39b89d77d98a9567d7cf626896458af5ff9f772228a4e4d35ba64a19f50758. 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/5BOVWeOcUSkpLCQjeLTD1g.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/5BOVWeOcUSkpLCQjeLTD1g.
{"copyright_id":"0xfbd6a9bd65f8ed3d4e3f80c48aac7173899d1dd4bd907dc8ed41eebca61c70f1","isrc":"USA2P2348116","name":"De Puntero A Sicario","registered_at":"2026-06-26T05:58:32Z","spotify_id":"43YyylWtHF8lnImYJCMtZR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd6a9bd65f8ed3d4e3f80c48aac7173899d1dd4bd907dc8ed41eebca61c70f1. 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/43YyylWtHF8lnImYJCMtZR.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/43YyylWtHF8lnImYJCMtZR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6099045ece2946d01f4529d60cd0483812d4fbab6459a9c843c9465d5ca6b7. 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/2XRUS5j1AvWfX8xflfkEMU.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/2XRUS5j1AvWfX8xflfkEMU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aa4292a54ea80c658bd9157219362395e89c96c44ac556fb3fe9663de84365. 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/0Ltmp1QxGOXUCxxufDszEI.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/0Ltmp1QxGOXUCxxufDszEI.
{"copyright_id":"0x6a16a4be5a97c6f394e8227802a42beee3fbff2b4ad0bc987998279e6eba2747","isrc":"USA2P2147281","name":"De Los Toys El Capitan","registered_at":"2026-06-09T12:10:25Z","spotify_id":"6uq02x1TxMMh40iwesx7hr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a16a4be5a97c6f394e8227802a42beee3fbff2b4ad0bc987998279e6eba2747. 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/6uq02x1TxMMh40iwesx7hr.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/6uq02x1TxMMh40iwesx7hr.
{"copyright_id":"0x7e2ff79e4e8dee167b6712190da62d2be9c0a31adffeec44151b088b4f980c45","isrc":"USA2P2147286","name":"Vitolías Así Me Llamo","registered_at":"2026-06-19T19:46:51Z","spotify_id":"06ixykONNGdoAgqyHny4GI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2ff79e4e8dee167b6712190da62d2be9c0a31adffeec44151b088b4f980c45. 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/06ixykONNGdoAgqyHny4GI.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/06ixykONNGdoAgqyHny4GI.
{"copyright_id":"0x5f8193a17965baca0c1f29a2ad16e991a7b8fcd53ad99a6527efb48f105c5916","isrc":"USA2P2147285","name":"El Padrino De Los Toys","registered_at":"2026-06-27T21:19:06Z","spotify_id":"0jnKaKSxhBBomXi6Qa7jHN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8193a17965baca0c1f29a2ad16e991a7b8fcd53ad99a6527efb48f105c5916. 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/0jnKaKSxhBBomXi6Qa7jHN.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/0jnKaKSxhBBomXi6Qa7jHN.
{"copyright_id":"0x2a3b0f23449ca1678b65c5fef786569f70ac515e8167c002c376f47b15dbc682","isrc":"USA2P2147284","name":"Me Presento Soy Hurtado","registered_at":"2026-06-25T01:31:38Z","spotify_id":"6bnnPuaec3EKiJ9ud5YZAQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3b0f23449ca1678b65c5fef786569f70ac515e8167c002c376f47b15dbc682. 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/6bnnPuaec3EKiJ9ud5YZAQ.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/6bnnPuaec3EKiJ9ud5YZAQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a7096c89206f2126333df3157923282b1c54e3baa401f4d8932d170a9e48ff. 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/01OmP7QwepQPdt6tN76jtf.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/01OmP7QwepQPdt6tN76jtf.
{"copyright_id":"0x49f0076c90cee2bbecff4f40c32eb7acafbe73396f4cb2baff29adf502b2c1f8","isrc":"QZMER2067597","name":"Si Señor Yo Soy Jaimico","registered_at":"2026-06-05T23:59:40Z","spotify_id":"4QNSTa4t8xgW5Kq2RFZmmf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f0076c90cee2bbecff4f40c32eb7acafbe73396f4cb2baff29adf502b2c1f8. 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/4QNSTa4t8xgW5Kq2RFZmmf.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/4QNSTa4t8xgW5Kq2RFZmmf.