, whose name means "Heart Sound" in Japanese, is a Vocaloid 3 vocal released by Internet Co., Ltd. Development Kokone's project began with the development a falsetto vocal for the Megpoid software. T
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 0xad38bb099625165a6dc1de16ae41391c27e5087563e614a0a7fb23a3603f67fd. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceae237e-18a0-463c-96ee-7dac6b09a4b3.json and https://artists.proofprofile.net/proofs/artist/ceae237e-18a0-463c-96ee-7dac6b09a4b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Moon Rabbit is in Love (feat. Kyushu Sora)
Sakuratoiki (Japanese musical instruments)