Fumi (ふみ in hiragana or フミ in katakana) is a feminine Japanese given name. Written forms Forms in kanji include: 史, "history" 文, "sentence" 二三, "two, three" 芙美, "lotus, beauty" The name can als
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 0xb5c581699161e2424788c361ad275df69106967b368fb5b28fae4910a65aac2f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88b625a6-554e-4af2-899f-06b8e686cc15.json and https://artists.proofprofile.net/proofs/artist/88b625a6-554e-4af2-899f-06b8e686cc15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).