is a feminine Japanese given name which is also used as a surname. Written forms Nanase can be written using different kanji characters and can mean: as a given name 七瀬, "seven, rapids" 菜々瀬, "gree
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 0xdd66bda726bffa5dfea4222f224c0a9db766c129f24be7f21d9ba196dcc8625c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a352a77-9a4b-4965-aab8-fedb8666946b.json and https://artists.proofprofile.net/proofs/artist/5a352a77-9a4b-4965-aab8-fedb8666946b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).