Akira Mita
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8a70abe7f0214ee8a91d6478a102527b20ba870b7d2e3762c0b42378f841372
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a123d86c-2544-4c23-8020-a42d28a7fcb8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a123d86c-2544-4c23-8020-a42d28a7fcb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a123d86c-2544-4c23-8020-a42d28a7fcb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8a70abe7f0214ee8a91d6478a102527b20ba870b7d2e3762c0b42378f841372","name":"Akira Mita","registered_at":"2026-06-20T05:46:47Z","symbol":"NIM1530406","token_address":"0xdf2ee3940c298400153335f8b2d96c8ecad97817","type":"artist","uuid":"a123d86c-2544-4c23-8020-a42d28a7fcb8"}
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 0xb8a70abe7f0214ee8a91d6478a102527b20ba870b7d2e3762c0b42378f841372. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a123d86c-2544-4c23-8020-a42d28a7fcb8.json and https://artists.proofprofile.net/proofs/artist/a123d86c-2544-4c23-8020-a42d28a7fcb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xb8a70abe7f0214ee8a91d6478a102527b20ba870b7d2e3762c0b42378f841372","name":"Akira Mita","registered_at":"2026-06-20T05:46:47Z","symbol":"NIM1530406","token_address":"0xdf2ee3940c298400153335f8b2d96c8ecad97817","type":"artist","uuid":"a123d86c-2544-4c23-8020-a42d28a7fcb8"}
album: 50th Anniversary Album
  type: MusicAlbum
  date published: 2012-10-10
  track: Utsukushii Judai
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209053
    explicit: false
    by artist: Akira Mita
    in album: 50th Anniversary Album
      type: MusicAlbum
      date published: 2012-10-10
    isrc code: JPVI06300560
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:04:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6254035bb4b2eda2e67393f715842e378e7abbbe9e374f390afeea8b8682d617
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI06300560
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x6254035bb4b2eda2e67393f715842e378e7abbbe9e374f390afeea8b8682d617. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPVI06300560.
      date published: 2026-07-05T10:01:46Z
    audio: Utsukushii Judai
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.704
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.302
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.852
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.176
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.5
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.791
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Akira Mita 60th Anniversary Album
  type: MusicAlbum
  date published: 2023-09-20