Kokone
type: MusicGroup
genre: vocaloid
description: , 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
popularity: 8
followers: 868
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad38bb099625165a6dc1de16ae41391c27e5087563e614a0a7fb23a3603f67fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceae237e-18a0-463c-96ee-7dac6b09a4b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceae237e-18a0-463c-96ee-7dac6b09a4b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ceae237e-18a0-463c-96ee-7dac6b09a4b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-21T02:46:24Z
album: コスモス
  type: MusicAlbum
  date published: 2019-11-27
album: Eternal Moonlight
  type: MusicAlbum
  date published: 2021-09-26
album: Wish to the stars
  type: MusicAlbum
  date published: 2022-08-08
album: my navigation is broken
  type: MusicAlbum
  date published: 2023-03-27
album: origin storm
  type: MusicAlbum
  date published: 2023-06-26
album: Queen of the Night
  type: MusicAlbum
  date published: 2024-03-25
album: LoveSong
  type: MusicAlbum
  date published: 2024-04-30
album: The First Summer
  type: MusicAlbum
  date published: 2024-08-03
album: Magic Color
  type: MusicAlbum
  date published: 2024-09-20
album: Magic Color
  type: MusicAlbum
  date published: 2024-09-20
album: The Moon Rabbit is in Love (feat. Kyushu Sora)
  type: MusicAlbum
  date published: 2024-09-25
album: oiran way
  type: MusicAlbum
  date published: 2024-11-02
album: Whispers of Tomorrow
  type: MusicAlbum
  date published: 2024-12-14
album: Blue butterfly
  type: MusicAlbum
  date published: 2024-12-21
album: Blue butterfly
  type: MusicAlbum
  date published: 2024-12-21
album: 桜吐息 (和楽器)
  type: MusicAlbum
  date published: 2025-07-28
album: Sakuratoiki (Japanese musical instruments)
  type: MusicAlbum
  date published: 2025-07-28
album: A dream filled with colors
  type: MusicAlbum
  date published: 2025-07-29
album: 雨に咲く涙
  type: MusicAlbum
  date published: 2025-10-03
album: kishin
  type: MusicAlbum
  date published: 2025-10-14