1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aa4d3ab8c97872f28cb5f3e92805ce1000764971420da62d5bc7fc0f7b96ae. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4be8fffe-6212-477b-810b-37f7b82228f1.json and https://artists.proofprofile.net/proofs/artist/4be8fffe-6212-477b-810b-37f7b82228f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
アテンションノート (feat. シェリン・バーガンディ)
パラドックス・アシンメトリー (feat. 鈴木勝)
失われし最終楽章 (feat. リゼ・ヘルエスタ)
Andante (feat. 周央サンゴ, シェリン・バーガンディ, 健屋花那, 弦月藤士郎, 鈴木勝 & リゼ・ヘルエスタ)