Desurabbits (stylized as ) was a Japanese idol group based in Tokyo. Alongside contemporary idol groups such as Babymetal, they are notable for being one of the early pioneers of the death metal/J-pop
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 0xbb20cd74baa320d706cba89a277ab8d9a69094463f34dd49201c7693388a8e73. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2f27b88-eaab-47e7-8b57-ba02724a51da.json and https://artists.proofprofile.net/proofs/artist/b2f27b88-eaab-47e7-8b57-ba02724a51da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Usagi no Kimochi / Chu-ni no Natsu Ojisan no Natsu
Desumaspring -Sorosoro Keigo wo tsukatte mimasenka-
ですまスプリング 〜そろそろ敬語を使ってみませんか〜
MINNA OIDEYO DESURABI LAND IDOL KAI NO YAMI
みんなおいでよ！ですラビランド！ 〜アイドル界の闇〜
Mushisuruna, Kiminoirohakimidekimerebaii