Chór Wydziału Muzyki Uniwersytetu Rzeszowskiego
{"copyright_id":"0x889b066f9c7bc3f8e4d3b1ec124eeb39c2d8d12d499e8ebcb4a9da0748385e85","name":"Chór Wydziału Muzyki Uniwersytetu Rzeszowskiego","registered_at":"2026-06-20T17:35:17Z","symbol":"NIM1671559","token_address":"0xf6c7ea9dae4b81052f1cdc8a7ae3f1bdb7c0efc4","type":"artist","uuid":"bd7f2c32-5887-4332-9138-03ba3421c916"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x889b066f9c7bc3f8e4d3b1ec124eeb39c2d8d12d499e8ebcb4a9da0748385e85. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd7f2c32-5887-4332-9138-03ba3421c916.json and https://artists.proofprofile.net/proofs/artist/bd7f2c32-5887-4332-9138-03ba3421c916.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).