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 0xbc9127f5ee1dddb123ac9928475bfc40ac2049604d349604a276693ccd468440. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4c959cf-d6ec-42b0-a062-9975d4182343.json and https://artists.proofprofile.net/proofs/artist/a4c959cf-d6ec-42b0-a062-9975d4182343.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x5f95a616de4bac86926f55fc0e42c3d3eb3ea4b1d59acb059dd626edd2301148","isrc":"QZN882126146","name":"Como Tú No Hay Dos","registered_at":"2026-06-10T21:04:47Z","spotify_id":"4A8MJvIN5BROHxBgZHwBhv","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 0x5f95a616de4bac86926f55fc0e42c3d3eb3ea4b1d59acb059dd626edd2301148. 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/4A8MJvIN5BROHxBgZHwBhv.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/4A8MJvIN5BROHxBgZHwBhv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd35e36bfaf655915af3e2885748fd9028560dd9011e2c824560116fd78696d. 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/6VaHuABqpagvLbIhci6ZX4.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/6VaHuABqpagvLbIhci6ZX4.
{"copyright_id":"0x28d5489f8b28efbe772d5a0fbf38284d9069a7afc0464f7ae11d21ed38ea9eaf","isrc":"CA5KR1506724","name":"Como Tu No Hay Dos","registered_at":"2026-06-04T14:16:30Z","spotify_id":"5zuufGlBxbZj7GGrJEwBLI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d5489f8b28efbe772d5a0fbf38284d9069a7afc0464f7ae11d21ed38ea9eaf. 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/5zuufGlBxbZj7GGrJEwBLI.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/5zuufGlBxbZj7GGrJEwBLI.
{"copyright_id":"0xc64c457412b1aa1a32bef30ea3e1ca50935b90971aa0e007db8afe3e0c4365d9","isrc":"COAKK2000110","name":"Tu Me Mueve El Piso","registered_at":"2026-06-07T09:31:55Z","spotify_id":"3xCu3OEBCSq1fNCn5HKFei","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64c457412b1aa1a32bef30ea3e1ca50935b90971aa0e007db8afe3e0c4365d9. 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/3xCu3OEBCSq1fNCn5HKFei.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/3xCu3OEBCSq1fNCn5HKFei.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bf237d68638ea43ae586b346dbc5d976127f09539fc6211b0f294331d40bc1. 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/2YPwZShk77vgLjMuLJAp8p.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/2YPwZShk77vgLjMuLJAp8p.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5772f652a728a94878c9c249d5ee289674d52ca3f852e5dff49760d2eafbf6. 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/6765dQDYgcWcdxiIWdwRM7.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/6765dQDYgcWcdxiIWdwRM7.
Ultima noche (Jeivy Dance & Reymi Records Remix)
Ultima noche - Jeivy Dance & Reymi Records Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c2263877f2239ee8ad01cb0fae152fb880dd3dcb28c9e0fa320fc1f46a1116. 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/6xb0ti9OwP05pekOSfM0DZ.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/6xb0ti9OwP05pekOSfM0DZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ec862c4f313851c04cd27241dbc824d7ae595ee69ebf57ee442638b4a9dfd3. 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/0P1XiWZq9B5ZpPKhB5s4ZQ.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/0P1XiWZq9B5ZpPKhB5s4ZQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c0f9df164fb7d56d6058610769af4dd206184cbf8d1a5d77dec001230fc16d. 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/1gn4X76zRLwMWIMDMQPL5D.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/1gn4X76zRLwMWIMDMQPL5D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ed73055985412b7907221fbf1e21ca9ab5a7547452ec72493d566ea4cfa022. 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/41KoxyYe7RB521h5nYAuIk.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/41KoxyYe7RB521h5nYAuIk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4ec9cc8ac602c0f5b3a9c9e6463ad43f51b3cd7d144cdc0a3e52397d41b9b4. 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/68d1zHCDPcsq4mqPRGDJPr.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/68d1zHCDPcsq4mqPRGDJPr.
{"copyright_id":"0xa715fb0e98ac9065bb940dda2f97cbac783790ba6b4c7f5a24c792603efedc01","isrc":"QZYFZ2467482","name":"La Falla","registered_at":"2026-06-25T14:34:13Z","spotify_id":"0EnAEel4IU8OU5DhrJdPJg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa715fb0e98ac9065bb940dda2f97cbac783790ba6b4c7f5a24c792603efedc01. 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/0EnAEel4IU8OU5DhrJdPJg.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/0EnAEel4IU8OU5DhrJdPJg.
{"copyright_id":"0x10efcc4be0661f5a4c9e4c974b1637bccb0e519aa40b6b1afe61e62521b2a2ab","isrc":"QZYFZ2467487","name":"Ajena (Audio En Vivo)","registered_at":"2026-06-09T20:56:35Z","spotify_id":"6sVXJHOGDznJaL1bdVG063","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10efcc4be0661f5a4c9e4c974b1637bccb0e519aa40b6b1afe61e62521b2a2ab. 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/6sVXJHOGDznJaL1bdVG063.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/6sVXJHOGDznJaL1bdVG063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c76edb30178f43453e020f453ac2d246461c045a9db563c1bad75a2069b732. 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/3ae9xDOZeHJMCgBDdj9fHp.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/3ae9xDOZeHJMCgBDdj9fHp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee643f6e27639f08da78b079851da300aca66314e1ce6926b7e6a7cee54ec114. 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/7fpzXApSaij9OQIREmN30U.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/7fpzXApSaij9OQIREmN30U.
{"copyright_id":"0xabb04df0afa4ce83f24fe93d0203e7f020ac39ddd32e2ee9d2cdbaf19b319354","isrc":"DGA062015735","name":"Tienes la Clave - En Vivo","registered_at":"2026-06-24T07:07:58Z","spotify_id":"3idIdRn0o4JSs1I1ekDmcg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb04df0afa4ce83f24fe93d0203e7f020ac39ddd32e2ee9d2cdbaf19b319354. 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/3idIdRn0o4JSs1I1ekDmcg.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/3idIdRn0o4JSs1I1ekDmcg.