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 0xd383846a29ed8e4a6d5453707c4de014a8abd724795f5659e5e034c60af3bc06. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af1ee27f-cc01-476d-ba44-9bd06f4c6d98.json and https://artists.proofprofile.net/proofs/artist/af1ee27f-cc01-476d-ba44-9bd06f4c6d98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A zománc-mágus titkos imái (In memoriam Kátai Mihály)