Jin Hashimoto
type: MusicGroup
genre: anime
description: is a Japanese singer and vocal trainer. He is best known for his contributions to Japanese television series' theme songs, such as his debut as the vocalist for the ending theme of Kamen Rider Kuuga.
popularity: 44
followers: 46219
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additional property: OTSVerifyInstructions
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  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
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album: STAND PROUD
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  date published: 2014-04-23
album: Stand Proud
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  date published: 2014-04-23
album: STAND PROUD
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  date published: 2014-04-23
album: Stand Proud
  type: MusicAlbum
  date published: 2014-11-14
album: JOJO'S BIZARRE ADVENTURE -The anthology songs 3
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  date published: 2015-05-27
  track: Star Platinum - ORIGINAL KARAOKE
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      date published: 2015-05-27
    genre: anime
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-19T15:36:35Z
    audio: Star Platinum - ORIGINAL KARAOKE
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album: ジョジョの奇妙な冒険 The anthology songs (3)
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  date published: 2015-05-27
  track: STAND PROUD - Dramatic Ver.
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    in album: ジョジョの奇妙な冒険 The anthology songs (3)
      type: MusicAlbum
      date published: 2015-05-27
    genre: anime
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-21T11:41:42Z
    audio: STAND PROUD - Dramatic Ver.
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  track: NAKED SILVER
album: Stand Proud (From "JoJo's Bizarre Adventure: Stardust Crusaders") [Gametronic]
album: NAKED SILVER
album: You
album: Singin' to the sky
album: ぼくらのワンダーランド

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Instrumentalness
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Valence (Positivity)
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Loudness (dB)
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Mode Name
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NAKED SILVER
type: MusicRecording
duration: PT3M18S
duration ms: 198933
explicit: false
by artist: Jin Hashimoto
in album: ジョジョの奇妙な冒険 The anthology songs (3)
  type: MusicAlbum
  date published: 2015-05-27
genre: anime
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-04T10:04:33Z
audio: NAKED SILVER
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Stand Proud (From "JoJo's Bizarre Adventure: Stardust Crusaders") [Gametronic]
type: MusicAlbum
date published: 2023-05-10

NAKED SILVER
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date published: 2023-08-08
track: NAKED SILVER
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  additional property: OTSVerifyInstructions
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    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
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    date published: 2026-07-05T18:48:28Z
  audio: NAKED SILVER
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STAND PROUD
type: MusicAlbum
date published: 2023-08-27

You
type: MusicAlbum
date published: 2025-01-10

Singin' to the sky
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date published: 2025-02-21
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    date published: 2025-02-21
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  additional property: OTSVerifyInstructions
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    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
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    date published: 2026-07-05T10:01:46Z
  audio: Singin' to the sky
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ぼくらのワンダーランド
type: MusicAlbum
date published: 2025-04-19