Marinenko is an East Slavic surname. Notable people with the surname include: Nadezhda Marinenko (born 1951), Belarusian athlete Tatyana Marinenko (1920–1942), Soviet-Belarusian partisan See also
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 0x256efa7df22e210bb61369d6a08d6db6fbecdbf28df4c497b65538a17ecc21af. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28f3f06c-9c00-4476-b8b1-73984c58dd97.json and https://artists.proofprofile.net/proofs/artist/28f3f06c-9c00-4476-b8b1-73984c58dd97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).