Ivana is a feminine given name of Slavic origin that is also popular in southern Ireland, France, French-speaking Canada, the Mediterranean and Latin America. It is the feminine form of the name Ivan,
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060a99cdda54ead20a0001e165772b390f9a261a7dc380536f20d913a1646427. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9cf2fb4-edff-4b00-8352-402c790f2658.json and https://artists.proofprofile.net/proofs/artist/f9cf2fb4-edff-4b00-8352-402c790f2658.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.