吉田政美
type: MusicGroup
genre: city pop
genre: shibuya-kei
popularity: 6
followers: 508
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa60e45fead76d02e9770582f15d9039a7c22b6b87bf79e47188ae5444e9ad204
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953978
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953978
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b69a573-6d68-48b3-9aee-0e906682a5b6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b69a573-6d68-48b3-9aee-0e906682a5b6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b69a573-6d68-48b3-9aee-0e906682a5b6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:11:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa60e45fead76d02e9770582f15d9039a7c22b6b87bf79e47188ae5444e9ad204","name":"吉田政美","registered_at":"2026-06-16T04:57:16Z","symbol":"NIM0944364","token_address":"0xd993d6c8323c6800f3e8377040e4dc3db40005b6","type":"artist","uuid":"2b69a573-6d68-48b3-9aee-0e906682a5b6"}
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 0xa60e45fead76d02e9770582f15d9039a7c22b6b87bf79e47188ae5444e9ad204. Chain 2 (Bitcoin): anchored in block 953978 (2026-06-16T17:11:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b69a573-6d68-48b3-9aee-0e906682a5b6.json and https://artists.proofprofile.net/proofs/artist/2b69a573-6d68-48b3-9aee-0e906682a5b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:11:18Z
  text: {"copyright_id":"0xa60e45fead76d02e9770582f15d9039a7c22b6b87bf79e47188ae5444e9ad204","name":"吉田政美","registered_at":"2026-06-16T04:57:16Z","symbol":"NIM0944364","token_address":"0xd993d6c8323c6800f3e8377040e4dc3db40005b6","type":"artist","uuid":"2b69a573-6d68-48b3-9aee-0e906682a5b6"}
album: MY TUNE, MY TURN
  type: MusicAlbum
  date published: 2007-09-19
  track: オレンジ・シティの朝
    type: MusicRecording
    duration: PT4M27S
    duration ms: 267600
    explicit: false
    by artist: 吉田政美
    in album: MY TUNE, MY TURN
      type: MusicAlbum
      date published: 2007-09-19
    genre: city pop
    genre: shibuya-kei
    isrc code: JPWP00700444
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T12:16:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa4b30dff2b18c72a5ba8f62f7b703a1aea099534c31c68285200c66dc9e6ccb8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958415
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958415
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPWP00700444
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T12:50:13Z
    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 0xa4b30dff2b18c72a5ba8f62f7b703a1aea099534c31c68285200c66dc9e6ccb8. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/JPWP00700444.
      date published: 2026-07-17T12:50:13Z
    audio: オレンジ・シティの朝
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.405
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.63
      additional property: Energy
        type: PropertyValue
        value: 0.614
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.202
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.312
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.845
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.91
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major