竹山逸郎
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbdf4014c7e0221fad55fd9316610d2432426f64883ad954f855ec6fb41b98713
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c05021e-e0c9-4d87-8aad-23340f6db158.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8c05021e-e0c9-4d87-8aad-23340f6db158.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8c05021e-e0c9-4d87-8aad-23340f6db158
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbdf4014c7e0221fad55fd9316610d2432426f64883ad954f855ec6fb41b98713","name":"竹山逸郎","registered_at":"2026-06-17T14:27:42Z","symbol":"NIM1423956","token_address":"0x7aec8faa44ec5f20a490d5d87d54a7f4940fb2fd","type":"artist","uuid":"8c05021e-e0c9-4d87-8aad-23340f6db158"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4014c7e0221fad55fd9316610d2432426f64883ad954f855ec6fb41b98713. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c05021e-e0c9-4d87-8aad-23340f6db158.json and https://artists.proofprofile.net/proofs/artist/8c05021e-e0c9-4d87-8aad-23340f6db158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xbdf4014c7e0221fad55fd9316610d2432426f64883ad954f855ec6fb41b98713","name":"竹山逸郎","registered_at":"2026-06-17T14:27:42Z","symbol":"NIM1423956","token_address":"0x7aec8faa44ec5f20a490d5d87d54a7f4940fb2fd","type":"artist","uuid":"8c05021e-e0c9-4d87-8aad-23340f6db158"}
album: 昭和を飾った名歌手たち Vol.11 異国の丘/竹山 逸郎
  type: MusicAlbum
  date published: 1999-01-21
  track: 異国の丘
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192133
    explicit: false
    by artist: 竹山逸郎
    in album: 昭和を飾った名歌手たち Vol.11 異国の丘/竹山 逸郎
      type: MusicAlbum
      date published: 1999-01-21
    genre: enka
    genre: kayokyoku
    isrc code: JPVI04800020
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:34:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfd82169dd34e69c8f48f4dbce9c48e1f23c333156d1550fcb13ecf7b94509be8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI04800020
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:37:14Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd82169dd34e69c8f48f4dbce9c48e1f23c333156d1550fcb13ecf7b94509be8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:14Z), 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/JPVI04800020.
      date published: 2026-07-20T10:37:14Z
    audio: 異国の丘
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.379
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.59
      additional property: Energy
        type: PropertyValue
        value: 0.257
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.982
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.334
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.553
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.483
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 日本の流行歌スターたち(35) 竹山逸郎 町から村から工場から～異国の丘
  type: MusicAlbum
  date published: 2020-07-15