speena
type: MusicGroup
genre: shibuya-kei
popularity: 12
followers: 1583
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22e1d3fc35ceec6979df038edd325663f7de6dff991fb726ebe595153c0abeda
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953696
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953696
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/727f8ca7-6a21-46bf-8155-4f860fc4d1fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/727f8ca7-6a21-46bf-8155-4f860fc4d1fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/727f8ca7-6a21-46bf-8155-4f860fc4d1fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:45:57Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e1d3fc35ceec6979df038edd325663f7de6dff991fb726ebe595153c0abeda. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/727f8ca7-6a21-46bf-8155-4f860fc4d1fa.json and https://artists.proofprofile.net/proofs/artist/727f8ca7-6a21-46bf-8155-4f860fc4d1fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:45:57Z
album: Calm Soul
  type: MusicAlbum
  date published: 2000-10-18
album: ｽﾋﾟｰﾅ
  type: MusicAlbum
  date published: 2000-11-29
album: ジレンマ
  type: MusicAlbum
  date published: 2001-08-17
album: 眠れる森
  type: MusicAlbum
  date published: 2002-04-24
album: タナトス
  type: MusicAlbum
  date published: 2003-02-19
album: much much more!!
  type: MusicAlbum
  date published: 2003-04-09
album: つづれおり
  type: MusicAlbum
  date published: 2003-08-13
album: ﾏﾙｺﾞﾚｯﾀ
  type: MusicAlbum
  date published: 2003-11-27
album: ｽﾄﾚﾝｼﾞﾃﾞｲｽﾞ
  type: MusicAlbum
  date published: 2004-02-25
album: 月に鳴く
  type: MusicAlbum
  date published: 2004-08-25
album: chu chu de vista!!
  type: MusicAlbum
  date published: 2004-10-20
  track: 月に鳴く
    type: MusicRecording
    duration: PT4M52S
    duration ms: 292100
    explicit: false
    by artist: speena
    in album: chu chu de vista!!
      type: MusicAlbum
      date published: 2004-10-20
    genre: shibuya-kei
    isrc code: JPB600442901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T07:47:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6425e7735f70cabb0456f2dfbba7dc92ca3f1daed2694919d2312ea09c838130
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600442901
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:04:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6425e7735f70cabb0456f2dfbba7dc92ca3f1daed2694919d2312ea09c838130. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600442901.
      date published: 2026-07-21T09:04:56Z
    audio: 月に鳴く
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 181.613
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.44
      additional property: Energy
        type: PropertyValue
        value: 0.499
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.327
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.059
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.351
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.094
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ﾏﾃﾘｱﾙ･ｶﾞｰﾙ／年下の男の子
  type: MusicAlbum
  date published: 2005-03-02
album: candy lovely music !! ～胸のﾎﾞﾀﾝがはじけて～
  type: MusicAlbum
  date published: 2005-03-24
album: ｷﾗｷﾗﾃﾞｲｽﾞ
  type: MusicAlbum
  date published: 2005-06-29
album: ｼｭｶﾞｰﾑｰﾝ*ｼｬﾝｾﾞﾘｾﾞ
  type: MusicAlbum
  date published: 2005-11-30
album: ninnananna
  type: MusicAlbum
  date published: 2007-01-31