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 0xf02a56c563c80a58b68c06a1e286074c16c1e260cefc2f092f803e093ac43fe8. 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/beced645-b375-44f2-b277-2739db515486.json and https://artists.proofprofile.net/proofs/artist/beced645-b375-44f2-b277-2739db515486.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x506c31eaf341d3cc6d02f90283c5db673f91f60697e96a46ab53ca441e0eaf65","isrc":"QM6MZ2120712","name":"Poncho Konos - Remastered 2021","registered_at":"2026-06-08T13:16:49Z","spotify_id":"3Oels2TwhBs9rJbTu6yvyK","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 0x506c31eaf341d3cc6d02f90283c5db673f91f60697e96a46ab53ca441e0eaf65. 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/3Oels2TwhBs9rJbTu6yvyK.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/3Oels2TwhBs9rJbTu6yvyK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b0dc87963ab0929943409e1e5cd54ac874556dc93e147f7b2adc69f13d821c. 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/0DhsymswrtrrXT35LM0NEV.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/0DhsymswrtrrXT35LM0NEV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea8a837ef91e23f2c2ad15f4e84cd696602d988a724b4afb615944b798b4219. 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/0k1wBT6Dy6gWHLgHZ7I3dG.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/0k1wBT6Dy6gWHLgHZ7I3dG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d82c6405abb792e91730150070cc1adcb23ba75cb046e22f88f7434453b0b. 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/3d8Q4hrYYCk3VpwWMX4BhI.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/3d8Q4hrYYCk3VpwWMX4BhI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668837647ae8f4f350616d9ce6c477684eab8b1cc94be2e9229b011b6783cae. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bgV5HJS32A7LHZJLxjK3Y.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/1bgV5HJS32A7LHZJLxjK3Y.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56084551c93254c55337e22da4c67383dd7ddeac78e17c59b10ac5cd698701c3. 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/5gjDB16yVnHtDIkMschH7w.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/5gjDB16yVnHtDIkMschH7w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e47a3f4e1bafcf30a70118fd6965bd1b0969778bbd23846a8a71a8d0f8f9d25. 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/48eSy9BTFwRk5zsVE9dYmR.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/48eSy9BTFwRk5zsVE9dYmR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779b51c635cd7ca1061fac85712796cbc219409f774af7147610d71714f5e7f2. 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/58nJLyfchtA632DTtM3uF4.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/58nJLyfchtA632DTtM3uF4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f62998acc215091dd37e53f75d7259c27c9f16c56a958e4de556e115f47d4c. 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/3XKbU2FWC2PDkaIAk4Gf8f.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/3XKbU2FWC2PDkaIAk4Gf8f.
{"copyright_id":"0xccd4c28c9ce1e71af2102a4c9c90b539678b075c98d4a71b84403738b67a9d27","isrc":"QMDA62149442","name":"Quieren Dar Pelea - Remix","registered_at":"2026-06-27T08:18:15Z","spotify_id":"7pjzny6cIkKgf5PblUzOZS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd4c28c9ce1e71af2102a4c9c90b539678b075c98d4a71b84403738b67a9d27. 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/7pjzny6cIkKgf5PblUzOZS.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/7pjzny6cIkKgf5PblUzOZS.
{"copyright_id":"0xef38ca7681f596c3eb68b0ad4c537bf77af034b87fb6b7aa5e48dffd65f0bf12","isrc":"QMDA62127626","name":"Un Gallito de Morada","registered_at":"2026-06-18T03:13:25Z","spotify_id":"1hgcb1daDQ6u7RFw6bTIxV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef38ca7681f596c3eb68b0ad4c537bf77af034b87fb6b7aa5e48dffd65f0bf12. 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/1hgcb1daDQ6u7RFw6bTIxV.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/1hgcb1daDQ6u7RFw6bTIxV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790329e0705d57ba4e1d3b319104c33b2b1d6d5768b7d1397478469bde6d3633. 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/2lxQBOLXgOR2ZDGQLXTu5E.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/2lxQBOLXgOR2ZDGQLXTu5E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2833288fb5d810cb66d4f7d9ada5e3954e6f85c670c6a6962a521a1851483449. 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/1dTlrQPNQkhE9OJ9CJIqgh.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/1dTlrQPNQkhE9OJ9CJIqgh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b01287f040c2cb12e5724522bb4de326c35e375783e500d5775a0fe2c66b84. 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/7pZd9kOwmSTvVzwmu7OA5W.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/7pZd9kOwmSTvVzwmu7OA5W.
{"copyright_id":"0xafd7167b8e77e7cdbdd7bd70c6891c474e9c6c0fe3c7198c6c7494a32d66a0d5","isrc":"QMFMF2053901","name":"La Güerita","registered_at":"2026-06-11T13:39:38Z","spotify_id":"0k7X5g2nknCJnrEWmt8ltO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd7167b8e77e7cdbdd7bd70c6891c474e9c6c0fe3c7198c6c7494a32d66a0d5. 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/0k7X5g2nknCJnrEWmt8ltO.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/0k7X5g2nknCJnrEWmt8ltO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262362db8c3adf1a78cf5e4fc7276d0b8e560e494d78642fa99d937262fab8e2. 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/1oM1VusFG1nGCDMF7Gipal.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/1oM1VusFG1nGCDMF7Gipal.
{"copyright_id":"0xb4c819c5ed4b181226ee4921e68fdbf71afb85d16aa680bcbbe288e44cf6cb71","isrc":"QM6MZ2084793","name":"Carros y Peligro","registered_at":"2026-06-25T07:42:14Z","spotify_id":"5vQy56TzAxKR9TPOMICZa5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c819c5ed4b181226ee4921e68fdbf71afb85d16aa680bcbbe288e44cf6cb71. 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/5vQy56TzAxKR9TPOMICZa5.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/5vQy56TzAxKR9TPOMICZa5.
{"copyright_id":"0x2e47a3f4e1bafcf30a70118fd6965bd1b0969778bbd23846a8a71a8d0f8f9d25","isrc":"QM4TW2022215","name":"El Baile Feliz","registered_at":"2026-06-22T04:57:18Z","spotify_id":"6AqKMlXtj5e8eDXEWXDmZp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e47a3f4e1bafcf30a70118fd6965bd1b0969778bbd23846a8a71a8d0f8f9d25. 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/6AqKMlXtj5e8eDXEWXDmZp.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/6AqKMlXtj5e8eDXEWXDmZp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56084551c93254c55337e22da4c67383dd7ddeac78e17c59b10ac5cd698701c3. 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/1mrNoKSfBGZNfzKOh1UnGu.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/1mrNoKSfBGZNfzKOh1UnGu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe668837647ae8f4f350616d9ce6c477684eab8b1cc94be2e9229b011b6783cae. 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/24FUpuInCi8KCyjjTGfifo.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/24FUpuInCi8KCyjjTGfifo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d82c6405abb792e91730150070cc1adcb23ba75cb046e22f88f7434453b0b. 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/2vI9UuwDjfuuVRwGPjmJva.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/2vI9UuwDjfuuVRwGPjmJva.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea8a837ef91e23f2c2ad15f4e84cd696602d988a724b4afb615944b798b4219. 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/4cpqvZXUBLCL4Na9FuO0Sn.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/4cpqvZXUBLCL4Na9FuO0Sn.
{"copyright_id":"0xa6bb41eddf6a4efb0c5a7d1aadaca8ca1077a2a14d1ac5f612a67c22391710cd","isrc":"FRX202354716","name":"El Rolex Diamantado","registered_at":"2026-06-08T13:21:10Z","spotify_id":"7DLv81dqerELiiJ1Hc1Qc0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bb41eddf6a4efb0c5a7d1aadaca8ca1077a2a14d1ac5f612a67c22391710cd. 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/7DLv81dqerELiiJ1Hc1Qc0.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/7DLv81dqerELiiJ1Hc1Qc0.