Rózsa is a Hungarian language surname or female given name, which is equivalent to the English name Rose. The surname Rózsa is derived from the given name.Dictionary of American Family Names. "Rózsa F
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 0x9ca3a6a47fb717a048db2a9e7c62cdb04145bb7af12d142fbc613650dc631960. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b70441f2-62e2-4401-87c5-3a59a7a5d833.json and https://artists.proofprofile.net/proofs/artist/b70441f2-62e2-4401-87c5-3a59a7a5d833.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).