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 0x0c9f9644cb372232f7c3921d06cd34fa483e358c2bd05536bc2a31df497d9b60. 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/6cc70cad-d619-4763-bb09-67d242e4f9e8.json and https://artists.proofprofile.net/proofs/artist/6cc70cad-d619-4763-bb09-67d242e4f9e8.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 0xce2349b34822105675a5474ec3a1d2c2559bd4fff85e109a5b9ad09fd0ed7dc4. 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/2lobt3EBZr2Cqa7yFkl0Dn.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/2lobt3EBZr2Cqa7yFkl0Dn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae1bfc05cd8e3a2c2993cf1bdb6eb5b7afa57587319ca82274fb2062fbe0aab. 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/0X1e61RVfT39n5Xj0bTtre.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/0X1e61RVfT39n5Xj0bTtre.
{"copyright_id":"0xaf135fe1678dabf72fdadc488a8ad2e210b739c2cf98ab59795ba76ac16df878","isrc":"QZTBF2435446","name":"Conga Z","registered_at":"2026-06-05T21:58:51Z","spotify_id":"5f9tDWb93xIiNhuiu9RCs9","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf135fe1678dabf72fdadc488a8ad2e210b739c2cf98ab59795ba76ac16df878. 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/5f9tDWb93xIiNhuiu9RCs9.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/5f9tDWb93xIiNhuiu9RCs9.
{"copyright_id":"0x5bc2a25494564bc5b29549020a3fc90be12b4cb4d0f3fc39bf11c7ed2ee86c03","isrc":"QZTBF2435447","name":"Pan De Boca Rmx","registered_at":"2026-06-17T21:37:29Z","spotify_id":"0BNXFxOFdJKo7TbSlsmj94","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc2a25494564bc5b29549020a3fc90be12b4cb4d0f3fc39bf11c7ed2ee86c03. 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/0BNXFxOFdJKo7TbSlsmj94.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/0BNXFxOFdJKo7TbSlsmj94.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa547785712f7c72bae6c636df53b4bc0ac2fd8fe73b63739bddb7e3269e4165. 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/4rC5C7sI5CTR5Q78d3dG94.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/4rC5C7sI5CTR5Q78d3dG94.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f75ff7e282441d3a3b7fea36db28c8dbd51c1b051528d56208b69046ff9b448. 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/3gYSinWiIYQXi56XsVs6IE.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/3gYSinWiIYQXi56XsVs6IE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4514544dc135ca152cf3244ad8112a7d360c1c394eef681776c353f811acb7c5. 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/6ifrwxmfkAE2PsGpabsQVl.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/6ifrwxmfkAE2PsGpabsQVl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf375d277903ac37eab2b21e005e119df88f1ce44bdb7a19e6ed6a45dab2861d. 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/4QUS8Wi3CScxf8dw0I3jxP.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/4QUS8Wi3CScxf8dw0I3jxP.
{"copyright_id":"0x02fb1d76f98a4b068a89daed407fee575f494aab3f8d279257b0087b151fa1df","isrc":"QZTBF2435451","name":"Dalo Todo","registered_at":"2026-06-11T05:04:23Z","spotify_id":"71mijtOQfYXaGTOoYmS4PA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fb1d76f98a4b068a89daed407fee575f494aab3f8d279257b0087b151fa1df. 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/71mijtOQfYXaGTOoYmS4PA.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/71mijtOQfYXaGTOoYmS4PA.
{"copyright_id":"0x15023ba4e827c75e8ec3d2f3f8c6ce949c07e34409a384135aea41810bc6f990","isrc":"QZTAZ2462482","name":"Tepito Buffa Rmx","registered_at":"2026-06-09T15:56:15Z","spotify_id":"2SPxIA1tVcQaHGvoTYvWYD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15023ba4e827c75e8ec3d2f3f8c6ce949c07e34409a384135aea41810bc6f990. 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/2SPxIA1tVcQaHGvoTYvWYD.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/2SPxIA1tVcQaHGvoTYvWYD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c12f214f12c8db1035ab25e4f836b1408f6f150a67827685ddeeed699786695. 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/4SlvTfcdHxyDBp8YSnaQIp.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/4SlvTfcdHxyDBp8YSnaQIp.