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 0x4e579ac2a6833bf44917171f0d889306617aa399c7102b18af3393ac78128839. 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/9f4e9cc4-cfba-4571-90eb-4fc4c9364b33.json and https://artists.proofprofile.net/proofs/artist/9f4e9cc4-cfba-4571-90eb-4fc4c9364b33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xc36b0c9f8034f8f287abdbe9a16f9277a56c855c4dd68ec787047d5985f9d5ac","isrc":"QZWFJ2356549","name":"cougar claws","registered_at":"2026-06-19T22:26:28Z","spotify_id":"0TjbJL4NNizPtycDwhDQzY","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 0xc36b0c9f8034f8f287abdbe9a16f9277a56c855c4dd68ec787047d5985f9d5ac. 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/0TjbJL4NNizPtycDwhDQzY.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/0TjbJL4NNizPtycDwhDQzY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab7d7022d1866d485973c24246c1860970a912117b5d3e5a13fea92e0ef978f. 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/03d1mYnpRJEMdUFPSvkJYO.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/03d1mYnpRJEMdUFPSvkJYO.
{"copyright_id":"0xbbb2fca67dfde14b8841c2efa3f9c3421b5bb55159c97e30ad62e1aac88a9e4d","isrc":"QZWFN2392864","name":"me, coffee & mr. smiley","registered_at":"2026-06-09T23:53:48Z","spotify_id":"1ZVvJSxBI4iPy5V5sYAC1J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb2fca67dfde14b8841c2efa3f9c3421b5bb55159c97e30ad62e1aac88a9e4d. 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/1ZVvJSxBI4iPy5V5sYAC1J.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/1ZVvJSxBI4iPy5V5sYAC1J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa063e58fb4b66e7950bc24e84233641601ec7cb3dcaf4c37adde34b56d788d35. 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/1R0IKLY4uXaiN7lOsW7NJK.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/1R0IKLY4uXaiN7lOsW7NJK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273049875002cb25ef79f0511410da2e8ab6455ed58fa7b32e164f67323c7289. 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/7m4VLQzdEoMrzM7nzcNk41.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/7m4VLQzdEoMrzM7nzcNk41.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ecddf6c227e093e29b01e2326ef5e277ec949994908f18a1842e5be420cc6a. 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/6RM7BfKnnT0byaUmcnqTPc.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/6RM7BfKnnT0byaUmcnqTPc.
{"copyright_id":"0xa9770308a9a23dbe3428c38aead5d9544f147519a1a4c07bd771dc9a3794a98e","isrc":"QZES52306535","name":"kaeko's interlude","registered_at":"2026-06-23T05:50:41Z","spotify_id":"4E6MWcPxqMgEprpTHs1faM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9770308a9a23dbe3428c38aead5d9544f147519a1a4c07bd771dc9a3794a98e. 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/4E6MWcPxqMgEprpTHs1faM.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/4E6MWcPxqMgEprpTHs1faM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0d3b5eff9ffde771bd85dffdfaaa28a8eb4fa583d89d5689def7069eff3262. 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/521KBEsjakUCitUuS0PmhD.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/521KBEsjakUCitUuS0PmhD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa9e90c473b544882c33d7e4c5af530446b9076151db7a36afbf7b2934ce0d. 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/2mLwXgK2DMGrlEtEtEkW9U.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/2mLwXgK2DMGrlEtEtEkW9U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c80a1878853a82dba139e4c30f648ccf12e9fcb8d57849b639b2d24a682fbf6. 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/08X2oqeLsJBrpm9qH1xyuq.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/08X2oqeLsJBrpm9qH1xyuq.
{"copyright_id":"0x63daec4bf793dede15ea8f6e5749ba197d480b29a86630f8c6c18acce031a957","isrc":"QZTB32222284","name":"quiet tony!","registered_at":"2026-06-09T03:22:43Z","spotify_id":"1jGpED67WCvEXcGVqnkZ7b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63daec4bf793dede15ea8f6e5749ba197d480b29a86630f8c6c18acce031a957. 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/1jGpED67WCvEXcGVqnkZ7b.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/1jGpED67WCvEXcGVqnkZ7b.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca820b440de25c9f1261f62369b18c0f1dff34c1872b85d94e16615af2e9ed93. 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/398pejWNK0eIxPVCLPSZc1.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/398pejWNK0eIxPVCLPSZc1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06259d2f0d37f8a3bfd908d0322126152223b34b299c7bb2c4eb6b29480dc8df. 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/6R0JLLZjzEEG8oSMKgInDz.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/6R0JLLZjzEEG8oSMKgInDz.
{"copyright_id":"0xc36b0c9f8034f8f287abdbe9a16f9277a56c855c4dd68ec787047d5985f9d5ac","isrc":"QZWFJ2356549","name":"cougar claws!","registered_at":"2026-06-19T22:26:28Z","spotify_id":"1oATMNbelhF3NgHlwiZmNp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36b0c9f8034f8f287abdbe9a16f9277a56c855c4dd68ec787047d5985f9d5ac. 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/1oATMNbelhF3NgHlwiZmNp.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/1oATMNbelhF3NgHlwiZmNp.
{"copyright_id":"0x9adcaf27f090a60ab205073c7c432eb19717f25abefc92c10ac2597c64080da8","isrc":"QZTBD2327482","name":"TRENCHES FREESTYLE","registered_at":"2026-06-28T04:02:01Z","spotify_id":"5pDq6h4noS9WATZ71uZ42N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adcaf27f090a60ab205073c7c432eb19717f25abefc92c10ac2597c64080da8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5pDq6h4noS9WATZ71uZ42N.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/5pDq6h4noS9WATZ71uZ42N.
i don't think you are ready for what is coming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5470d82ec660fbd355f7be3bf1fc4d2f09b6782f588d660fb300ff82160714a0. 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/49mk9XwZIe96e2CQ79Y6UC.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/49mk9XwZIe96e2CQ79Y6UC.
{"copyright_id":"0xa19b52ae6983f9c7456fa34e2f54d3fae74ca16e45153421059e0206b9404aad","isrc":"QZNWX2320609","name":"i don't think you are ready for what is coming","registered_at":"2026-06-07T17:35:50Z","spotify_id":"0CDHSeboUHOnrZD9lxcHMn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19b52ae6983f9c7456fa34e2f54d3fae74ca16e45153421059e0206b9404aad. 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/0CDHSeboUHOnrZD9lxcHMn.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/0CDHSeboUHOnrZD9lxcHMn.
{"copyright_id":"0x2de2d1d4afa859669556a95e9129d2b592d96e882e0f2341afd2025f4a55ac92","isrc":"QZNWT2332902","name":"gangster, never fall in love!","registered_at":"2026-06-07T11:14:40Z","spotify_id":"6s9s2hTBrSVZU0lysamYd6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de2d1d4afa859669556a95e9129d2b592d96e882e0f2341afd2025f4a55ac92. 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/6s9s2hTBrSVZU0lysamYd6.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/6s9s2hTBrSVZU0lysamYd6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b4ea25f6fb2f34b7a91149613c0399348b84b2683dbb31ab324e9d3c0c4d32. 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/4TqZrnIGpIuDP9t6Q5WuJq.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/4TqZrnIGpIuDP9t6Q5WuJq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d011cb5c237bdf5bac5d4ae65771a8e8ee1ec75154441f706fa9ae2a8cb9682. 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/2q23WCKtBMvlJSI0sp25uD.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/2q23WCKtBMvlJSI0sp25uD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218ea83d2ad9f5b37ff564a71eb57d3168f548623c2fff1e4af6e40159144387. 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/6XUDoc4d4VptM17H72yJru.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/6XUDoc4d4VptM17H72yJru.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a4b96da1bd7a2fcba2bc9a150596d43675cef6285506ea44aa342962638d8c. 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/1qtlLXa7iIIA4LvmJJrF7B.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/1qtlLXa7iIIA4LvmJJrF7B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9085fa1e712048007d0a642c3ef0204a4baaebc584164319fb91aaf3b80c6d06. 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/0u2RXZ9lpv5OTQjYflGT0c.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/0u2RXZ9lpv5OTQjYflGT0c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934954e192586674eabbcfaf243e1fe3a754397640d65b1a7ffe3d027cf89eda. 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/37pDwyLbhyp9HZBVtXOudh.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/37pDwyLbhyp9HZBVtXOudh.