Weather Girls is a group of Japanese idols from Taiwan. Originally, the group is formed in 2010 and acted as weather forecasters on television and the internet for Taiwan and the United States. After
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 0x0b1929e6655ba914249ff78999e33a44a1fd5a869934e562826e83dc8c5cbe75. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f0526cb-ba18-4d8d-97eb-6c9de1d4088b.json and https://artists.proofprofile.net/proofs/artist/7f0526cb-ba18-4d8d-97eb-6c9de1d4088b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hey Boy - Weishenmo? - (First Edition A)
Hey Boy - Weishenmo? - (Standard Edition)
Koi wa Tokimeki Chuuihou (Standard Edition)
Hey Boy - Weishenmo? - (First Edition B)