Veronika Povilionienė ir Petras Vyšniauskas
{"copyright_id":"0x287995141f1da7ead9c313596134c3fbf7b0ffd6a8fd13acbffad89e958d2473","name":"Veronika Povilionienė ir Petras Vyšniauskas","registered_at":"2026-06-15T21:24:20Z","symbol":"NIM0836215","token_address":"0x89ba9b482aa2b89d4a8a8fe2d79b2af32cd27cae","type":"artist","uuid":"16917417-a4b6-4961-bbdd-3f718eba946c"}
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 0x287995141f1da7ead9c313596134c3fbf7b0ffd6a8fd13acbffad89e958d2473. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16917417-a4b6-4961-bbdd-3f718eba946c.json and https://artists.proofprofile.net/proofs/artist/16917417-a4b6-4961-bbdd-3f718eba946c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).