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 0x95c3caf1bd1a783fb2f4a7ec7c01a2df17139aa0e10b8efe49ae5a89ce717087. 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/a0ef108a-02fc-48ec-b275-845d9e30ed8c.json and https://artists.proofprofile.net/proofs/artist/a0ef108a-02fc-48ec-b275-845d9e30ed8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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{"copyright_id":"0x4bf50afc73aadec03c85c1e0e9627e1722a963571f61b5d8ea4205e153664a8b","isrc":"DEA551433549","name":"Solang ich atmen kann","registered_at":"2026-06-27T15:37:52Z","spotify_id":"5kixgEPWL62Fej3KHqexwb","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 0x4bf50afc73aadec03c85c1e0e9627e1722a963571f61b5d8ea4205e153664a8b. 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/5kixgEPWL62Fej3KHqexwb.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/5kixgEPWL62Fej3KHqexwb.
{"copyright_id":"0xa9e6364cd1180243be990eef8fcbd76ffaa8c86b55eb38da2493fe0a37243412","isrc":"DEA551600059","name":"Wer nur den lieben Gott lässt walten","registered_at":"2026-06-20T12:14:07Z","spotify_id":"61HRiW7QDdLefMte2xq5WA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e6364cd1180243be990eef8fcbd76ffaa8c86b55eb38da2493fe0a37243412. 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/61HRiW7QDdLefMte2xq5WA.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/61HRiW7QDdLefMte2xq5WA.
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