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 0x77f90404bcad670182237dfa9af99f8a7697051098b514251f237a788def4a4a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/956b3e82-da8a-410f-9d1c-f10f8ebe61c4.json and https://artists.proofprofile.net/proofs/artist/956b3e82-da8a-410f-9d1c-f10f8ebe61c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
舒缓小狗情绪的音乐：让宠物狗睡着的音乐，宠物疗法，轻松听的音乐
让小狗安静的音乐 – 动物疗法，小宠物的背景音乐，舒缓狗狗情绪的音乐，大自然的声音
宠物疗法: 轻松的音乐狗和猫, 冷静, 停止吠叫, 宠物安眠曲
新生的小狗的摇篮曲: 助你照顾小宠物的睡眠音乐， 小猫的催眠曲，动物音乐，猫咪和狗狗的放松音乐