Tomoka (written: , , , , , or in hiragana) is a feminine Japanese given name. Notable people with the name include: , Japanese idol , Japanese professional wrestler , Japanese long-distance runner
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 0x6710cadc5be22357724d7a2b06d038fc1cab7221b6350db00eebe6877eb58219. 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/fad5b5d7-2adf-484e-be8f-690d836fb887.json and https://artists.proofprofile.net/proofs/artist/fad5b5d7-2adf-484e-be8f-690d836fb887.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).