Houko Kuwashima
type: MusicGroup
genre: anime
description: is a Japanese voice actress and singer. She is capable of playing a variety of roles, ranging from young boys to feminine women. She is affiliated with Aoni Production.Doi, Hitoshi. "Kuwashima Houko"
popularity: 18
followers: 542
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc45ce1d1e836c1a123dbe6151443652dfc8f250500ffb191ffe1e34776342104
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/8b59a23d-022d-4f6b-b869-07a27a620f57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8b59a23d-022d-4f6b-b869-07a27a620f57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8b59a23d-022d-4f6b-b869-07a27a620f57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc45ce1d1e836c1a123dbe6151443652dfc8f250500ffb191ffe1e34776342104","name":"Houko Kuwashima","registered_at":"2026-06-14T19:08:15Z","symbol":"NIM0548381","token_address":"0x9f4c55350b121b67d95367c66ca631b9d4d9658b","type":"artist","uuid":"8b59a23d-022d-4f6b-b869-07a27a620f57"}
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 0xc45ce1d1e836c1a123dbe6151443652dfc8f250500ffb191ffe1e34776342104. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b59a23d-022d-4f6b-b869-07a27a620f57.json and https://artists.proofprofile.net/proofs/artist/8b59a23d-022d-4f6b-b869-07a27a620f57.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xc45ce1d1e836c1a123dbe6151443652dfc8f250500ffb191ffe1e34776342104","name":"Houko Kuwashima","registered_at":"2026-06-14T19:08:15Z","symbol":"NIM0548381","token_address":"0x9f4c55350b121b67d95367c66ca631b9d4d9658b","type":"artist","uuid":"8b59a23d-022d-4f6b-b869-07a27a620f57"}
album: Junshoku brilliant
  type: MusicAlbum
  date published: 2005
album: Shinkai no Kodoku
  type: MusicAlbum
  date published: 2020-02-02
track: STAR RISE
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230333
  explicit: false
  by artist: Ryo Hirohashi
  by artist: Megumi Toyoguchi
  by artist: Sachiko Kojima
  by artist: Houko Kuwashima
  by artist: Rina Sato
  in album: BAMBOO BLADE Original Soundtrack
    type: MusicAlbum
    date published: 2008-01-23
  popularity: 4
  isrc code: JPG750700128
  additional property: CopyrightID
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    type: PropertyValue
    value: registered
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    value: https://explorer.copyrightchains.com/tx/0x8e861abecbd926181a52e6c9f4e6c110c06289ba3c76501934da4c0b4e1d3f9a
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  additional property: OTSBitcoinBlock
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    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700128
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x8e861abecbd926181a52e6c9f4e6c110c06289ba3c76501934da4c0b4e1d3f9a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700128 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: STAR RISE
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.695
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.746
    additional property: Energy
      type: PropertyValue
      value: 0.964
    additional property: Speechiness
      type: PropertyValue
      value: 0.062
    additional property: Acousticness
      type: PropertyValue
      value: 0.22
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.076
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.872
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.318
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: BAMBOO BEAT
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221800
  explicit: false
  by artist: Ryo Hirohashi
  by artist: Megumi Toyoguchi
  by artist: Sachiko Kojima
  by artist: Houko Kuwashima
  by artist: Rina Sato
  in album: BAMBOO BLADE Original Soundtrack
    type: MusicAlbum
    date published: 2008-01-23
  popularity: 3
  isrc code: JPG750700127
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-05T20:27:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfbe984769d1dcf1fcb944009bba5b11d6bbbeaa77766fbafbbf7f78b12bf0ad6
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700127
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xfbe984769d1dcf1fcb944009bba5b11d6bbbeaa77766fbafbbf7f78b12bf0ad6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700127 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: BAMBOO BEAT
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.378
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.494
    additional property: Energy
      type: PropertyValue
      value: 0.93
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Speechiness
type: PropertyValue
value: 0.043

Acousticness
type: PropertyValue
value: 0.408

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.903

Loudness (dB)
type: PropertyValue
value: -6.222

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor