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 0x0c45f19909f35d258629ff2514503a02c845fe7a1b8db85e19025dda255763f1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aef53578-e1d7-47a6-9193-3b19c032eb96.json and https://artists.proofprofile.net/proofs/artist/aef53578-e1d7-47a6-9193-3b19c032eb96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「VAZZROCK」bi-colorシリーズ⑩「立花 歩-aquamarine-」 (ドラマトラック追加版)
「VAZZROCK」bi-colorシリーズ⑩「立花 歩-aquamarine-」
「VAZZROCK」bi-colorシリーズ2ndシーズン⑧「立花 歩-aquamarine×citrine-」
「VAZZROCK」bi-colorシリーズ3rdシーズン⑦「立花 歩-aquamarine×pearl- ないものねだり」