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 0xbff53d971c1aee51e0f0df6dd7f1c7683156818dd60d546c5d1aac3a6de0aceb. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2fa4918-ce21-4c79-b6fa-706a97c5af6f.json and https://artists.proofprofile.net/proofs/artist/c2fa4918-ce21-4c79-b6fa-706a97c5af6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
冬のアクティビティー: 体を温めるヨガ, ストレッチ, ピラティスＢＧＭ
心温まるヨガ音楽: おうちヨガＢＧＭ, 温活, おうちストレッチ
自宅ヨガ音楽 - 温活リラックス , 心温まるストレッチ音楽