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 0x3c15f86d364038a27b739ff0099a35191c0d3fde099d0eddaec34e87fdde922e. 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/b862ff91-03a2-4c12-bc2c-630f8e6de51e.json and https://artists.proofprofile.net/proofs/artist/b862ff91-03a2-4c12-bc2c-630f8e6de51e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Felicjan Andrzejczak & Glam quartet (Live)
Ekstaza (Nie okłamuj, że to miłość) - Live
{"copyright_id":"0x1790efe443bf4670eae88b92a2a09d966a810d44a429fbaade71ec945270a347","isrc":"PLA391605215","name":"Wizje Na Żywo - Live","registered_at":"2026-06-08T11:25:33Z","spotify_id":"0S1zJlL7LsOuHrsIjqEarl","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 0x1790efe443bf4670eae88b92a2a09d966a810d44a429fbaade71ec945270a347. 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/0S1zJlL7LsOuHrsIjqEarl.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/0S1zJlL7LsOuHrsIjqEarl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1e28851ed4a7d87f2aceeae80eb273603f7c0612caf49aa970289c9e463b0d. 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/2czewIAkcXyI3NJf1TvaY9.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/2czewIAkcXyI3NJf1TvaY9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecc96f28bb47767625251f8dc462d46c4dbdf21619f5209288d9b1919bd45e9. 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/7lj9XLm3Mf5GjXUnNsJDww.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/7lj9XLm3Mf5GjXUnNsJDww.