三浦拓也
type: MusicGroup
genre: jazz fusion
popularity: 8
followers: 257
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e72298bcc1317bdcf469d815ec07e4ab5c9a5b8b24de8e4a283e45aa5c85103
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3eb006cd-6cba-4215-b891-2eb32f4589de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3eb006cd-6cba-4215-b891-2eb32f4589de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3eb006cd-6cba-4215-b891-2eb32f4589de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e72298bcc1317bdcf469d815ec07e4ab5c9a5b8b24de8e4a283e45aa5c85103","name":"三浦拓也","registered_at":"2026-06-16T11:24:53Z","symbol":"NIM1036918","token_address":"0x680f341c1235426bf5a199cd701c6fe8d6dc7439","type":"artist","uuid":"3eb006cd-6cba-4215-b891-2eb32f4589de"}
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 0x8e72298bcc1317bdcf469d815ec07e4ab5c9a5b8b24de8e4a283e45aa5c85103. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3eb006cd-6cba-4215-b891-2eb32f4589de.json and https://artists.proofprofile.net/proofs/artist/3eb006cd-6cba-4215-b891-2eb32f4589de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x8e72298bcc1317bdcf469d815ec07e4ab5c9a5b8b24de8e4a283e45aa5c85103","name":"三浦拓也","registered_at":"2026-06-16T11:24:53Z","symbol":"NIM1036918","token_address":"0x680f341c1235426bf5a199cd701c6fe8d6dc7439","type":"artist","uuid":"3eb006cd-6cba-4215-b891-2eb32f4589de"}
album: Geopark
  type: MusicAlbum
  date published: 2023-06-01
album: Ring
  type: MusicAlbum
  date published: 2024-01-22
album: イカロス
  type: MusicAlbum
  date published: 2024-03-20
album: Geoworld
  type: MusicAlbum
  date published: 2024-03-27
track: アイランド・ホップ
  type: MusicRecording
  duration: PT7M18S
  duration ms: 438640
  explicit: false
  by artist: Kazumi Watanabe
  by artist: Shinichi Ubukata
  by artist: Jin Oki
  by artist: 三浦拓也
  by artist: 井上銘
  by artist: Char
  by artist: Ren Takada
  by artist: ミノ・シネル
  by artist: 谷川公子
  by artist: Kotaro Oshio
  by artist: Mike Stern
  by artist: Lee Ritenour
  by artist: SUGIZO
  by artist: Goro Ito
  in album: Guitar is Beautiful KW45 (International Version)
    type: MusicAlbum
    date published: 2016-04-06
  isrc code: JPWP01670087
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfa20082816e0a46dbdd21e4343a37cdef233f9c15ac4cfc994354f4a958c55a9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960138
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP01670087
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0xfa20082816e0a46dbdd21e4343a37cdef233f9c15ac4cfc994354f4a958c55a9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPWP01670087.
    date published: 2026-07-29T19:35:34Z
  audio: アイランド・ホップ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.707
    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: 0.742
    additional property: Energy
      type: PropertyValue
      value: 0.48
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.508
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.453
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.526
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.705
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major