AKIRA TAKANO
type: MusicGroup
popularity: 10
followers: 584
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1065547338f82e7ee3bec1ec83fbd8895f3d681393899b59b672b2da47419ae2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1065547338f82e7ee3bec1ec83fbd8895f3d681393899b59b672b2da47419ae2","name":"AKIRA TAKANO","registered_at":"2026-06-21T01:00:03Z","symbol":"NIM1770149","token_address":"0x95f791551b491964adc9791c33089948f70983f1","type":"artist","uuid":"cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6"}
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 0x1065547338f82e7ee3bec1ec83fbd8895f3d681393899b59b672b2da47419ae2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6.json and https://artists.proofprofile.net/proofs/artist/cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x1065547338f82e7ee3bec1ec83fbd8895f3d681393899b59b672b2da47419ae2","name":"AKIRA TAKANO","registered_at":"2026-06-21T01:00:03Z","symbol":"NIM1770149","token_address":"0x95f791551b491964adc9791c33089948f70983f1","type":"artist","uuid":"cfec3ba0-eadc-4c0a-b1b5-ace6a7e7b0e6"}
album: pinkcider
  type: MusicAlbum
  date published: 2025-07-05
album: pinkcider
  type: MusicAlbum
  date published: 2025-07-05
  track: pinkcider
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210148
    explicit: false
    by artist: AKIRA TAKANO
    in album: pinkcider
      type: MusicAlbum
      date published: 2025-07-05
    isrc code: JPQ322500142
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T18:38:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb173426f49c694c91b4c0ec2d31bcfc9d5c97c447e54d031f77847d0ce80b562
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPQ322500142
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xb173426f49c694c91b4c0ec2d31bcfc9d5c97c447e54d031f77847d0ce80b562. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPQ322500142.
      date published: 2026-07-18T19:27:02Z
    audio: pinkcider
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.975
      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: 0.547
      additional property: Energy
        type: PropertyValue
        value: 0.975
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.378
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.596
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.204
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major