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 0x9d0696bb1c000a2a0ab916ce0e660ba11c593fb3fef4a827666db1d7f2d73113. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7edc324b-0da8-4252-aaa5-1328511d62da.json and https://artists.proofprofile.net/proofs/artist/7edc324b-0da8-4252-aaa5-1328511d62da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
奇跡の集中432Hz: ヒーリング瞑想, 海馬を刺激して記憶力ＵＰ
水の音で集中力継続: リラックスα波自然音で捗る勉強＆作業用ＢＧＭ
θ波勉強用音楽: 集中力を継続させる音楽, ひらめき力アップ, 勉強作業ＢＧＭ
集中力を継続させる音楽: 記憶力高める周波数, 作業効率が上がるアンビエント音楽
θ波勉強ＢＧＭ: 記憶力を高める, 集中力を継続させる周波数
集中するθ波音楽 - 勉強に最適な記憶力を高める周波数, 集中力の継続