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 0x6ab0b62b17b8b099d939158a0bdca00b491637c5534011f82795590626494104. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1661b302-c060-4de0-93d9-965396f9e494.json and https://artists.proofprofile.net/proofs/artist/1661b302-c060-4de0-93d9-965396f9e494.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
インドBGM - 伝統音楽, 瞑想 方法, 仏教 瞑想
インド音楽: インド民族楽器, ガネーシャマントラ, インドヨガ音楽
インドリラックス瞑想: 伝統楽器, ヨガ, シンギングボウル
インド民族楽器 - ヨガや瞑想のリラックスインド音楽, ガネーシャマントラ