Katya is a feminine given name. It is a very popular name in Russia, Ukraine, Bulgaria, Serbia, and North Macedonia. It is a Russian diminutive form of Yekaterina, which is a Russian form of Katherine
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 0x14f97c216b8e4405454e4e7103751fe5a1bbbe5394e2a76cc42a7c76a89f3278. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79f14600-5c64-4f25-96b4-b43d43e84163.json and https://artists.proofprofile.net/proofs/artist/79f14600-5c64-4f25-96b4-b43d43e84163.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).