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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde54837210131ad2e9bc11cb0650e56d4f0d35d0e8a104a0fc20e457842187c4. 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/dd8b79e4-f5a0-48f8-907c-e96df04c737e.json and https://artists.proofprofile.net/proofs/artist/dd8b79e4-f5a0-48f8-907c-e96df04c737e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ママといっしょに - ママと赤ちゃんの癒し音楽
妊婦さんのためのリラクゼーション音楽：胎児のための自然音・リラックス子守唄・ママのための音楽
赤ちゃんが眠る音楽：夜深く寝る子供子守唄・ゆりかご睡眠ＢＧＭ
赤ちゃんが眠る音楽：夜深く寝る子供子守唄・ゆりかご睡眠音楽