Hachimitsu Rocket (はちみつロケット, stylized in English as Hachimitsu Rocket) is a Japanese girl idol group, formed by Stardust Promotion in November 2014. The group was graduated from 3B Junior in February
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c2262f570af012e5a0917433107bbb0a6759b94080b203dffbcedfe97a9ab1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c322b8b1-bbd3-4719-ae15-6e12e0683898.json and https://artists.proofprofile.net/proofs/artist/c322b8b1-bbd3-4719-ae15-6e12e0683898.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Okashi na Watashi to Hachimitsu no Kimi (Special Edition)
Hachimitsu Rocket - Ougon no Shichinin - (Special Edition)
おかしなわたしとはちみつのきみ
Hanabi to Manga to Chocolate to Ame (Special Edition)