YoYo the "Pianoman"
type: MusicGroup
genre: jazz fusion
popularity: 9
followers: 1198
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954784
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  value: https://artists.proofprofile.net/proofs/artist/e1273e33-218a-450e-a0f3-db881571f6bc.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1273e33-218a-450e-a0f3-db881571f6bc
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c8182c76bc78cc21aecac4567d547a2bb065f69cbff189139103251fc60825. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1273e33-218a-450e-a0f3-db881571f6bc.json and https://artists.proofprofile.net/proofs/artist/e1273e33-218a-450e-a0f3-db881571f6bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xb6c8182c76bc78cc21aecac4567d547a2bb065f69cbff189139103251fc60825","name":"YoYo the \"Pianoman\"","registered_at":"2026-06-21T07:03:05Z","symbol":"NIM1856549","token_address":"0x5b61f392f0f0d5311282e334b26caeef21dd42ea","type":"artist","uuid":"e1273e33-218a-450e-a0f3-db881571f6bc"}
album: O.G. Swing
  type: MusicAlbum
  date published: 2018-12-05
  track: 父と娘のダンス
    type: MusicRecording
    duration: PT6M36S
    duration ms: 396800
    explicit: false
    by artist: YoYo the "Pianoman"
    in album: O.G. Swing
      type: MusicAlbum
      date published: 2018-12-05
    genre: jazz fusion
    isrc code: JPB621800848
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB621800848
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 0x05d7d03a73c680a7d2171eb6a1a33b3964af661b0f607becbeff25f129d34dce. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPB621800848.
      date published: 2026-07-03T01:01:38Z
    audio: 父と娘のダンス
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.917
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.878
      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.177
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.264
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 父と娘のダンス (Solo Piano version)
  type: MusicAlbum
  date published: 2021-06-08
album: 線路に咲く花
  type: MusicAlbum
  date published: 2021-09-15
album: ジムノペディ
  type: MusicAlbum
  date published: 2021-10-20
album: O.G Magic O.G Music
  type: MusicAlbum
  date published: 2021-11-24
album: Christmas Mood
  type: MusicAlbum
  date published: 2022-12-07
album: Beautiful Smile ("Pianoman" ver.)
  type: MusicAlbum
  date published: 2023-03-15
album: ドラマ「社畜人ヤブー」（オリジナル・サウンドトラック）
  type: MusicAlbum
  date published: 2025-05-26
album: 三姉妹のコンチェルト
  type: MusicAlbum
  date published: 2025-06-11
album: A Gift for You
  type: MusicAlbum
  date published: 2025-07-02
  track: A Gift for You
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230278
    explicit: false
    by artist: YoYo the "Pianoman"
    in album: A Gift for You
      type: MusicAlbum
      date published: 2025-07-02
    genre: jazz fusion
    isrc code: JPB622502216
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T14:49:33+00:00
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958428
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB622502216
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T15:15:14Z
    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 0x15d1546a39d59386e52a26a25ae937edcb5ff3e92b68d72005ff95595757d785. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPB622502216.
      date published: 2026-07-17T15:15:14Z
    audio: A Gift for You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.768
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      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

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
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value: 4

Danceability
type: PropertyValue
value: 0.52

Energy
type: PropertyValue
value: 0.578

Speechiness
type: PropertyValue
value: 0.038

Acousticness
type: PropertyValue
value: 0.146

Instrumentalness
type: PropertyValue
value: 0.939

Liveness
type: PropertyValue
value: 0.096

Valence (Positivity)
type: PropertyValue
value: 0.819

Loudness (dB)
type: PropertyValue
value: -11.382

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

A Gift for You
type: MusicAlbum
date published: 2025-07-23