Galina Petrova (; ; 9 September 1920 – 4 December 1943) was a combat medic and Chief Petty Officer in the 386th Independent Naval Infantry Battalion of the Black Sea Fleet during the Second World War.
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 0xb9f4c43810dca77ffe097946db8798699eb62b0424f4901e0a0599711b3bdb53. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4510456-861d-4a25-be79-3b4c463bf923.json and https://artists.proofprofile.net/proofs/artist/a4510456-861d-4a25-be79-3b4c463bf923.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).