むちゃたぬき
type: MusicGroup
genre: vocaloid
popularity: 4
followers: 299
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab5459ec2958cdb0b032265ff75f8b7bd90af98247c2d5c95b064da71289eb32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/684f3fd9-436e-438d-aeb3-7c5370ce7989.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/684f3fd9-436e-438d-aeb3-7c5370ce7989.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/684f3fd9-436e-438d-aeb3-7c5370ce7989
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab5459ec2958cdb0b032265ff75f8b7bd90af98247c2d5c95b064da71289eb32","name":"むちゃたぬき","registered_at":"2026-06-17T01:58:49Z","symbol":"NIM1245406","token_address":"0x4d406942d4d9a6ea5b90e4f350c0abdc311fd313","type":"artist","uuid":"684f3fd9-436e-438d-aeb3-7c5370ce7989"}
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 0xab5459ec2958cdb0b032265ff75f8b7bd90af98247c2d5c95b064da71289eb32. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/684f3fd9-436e-438d-aeb3-7c5370ce7989.json and https://artists.proofprofile.net/proofs/artist/684f3fd9-436e-438d-aeb3-7c5370ce7989.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xab5459ec2958cdb0b032265ff75f8b7bd90af98247c2d5c95b064da71289eb32","name":"むちゃたぬき","registered_at":"2026-06-17T01:58:49Z","symbol":"NIM1245406","token_address":"0x4d406942d4d9a6ea5b90e4f350c0abdc311fd313","type":"artist","uuid":"684f3fd9-436e-438d-aeb3-7c5370ce7989"}
album: むちゃ子の歌 (feat. 初音ミク)
  type: MusicAlbum
  date published: 2025-10-31
  track: むちゃ子の歌 (feat. 初音ミク)
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168750
    explicit: false
    by artist: むちゃたぬき
    in album: むちゃ子の歌 (feat. 初音ミク)
      type: MusicAlbum
      date published: 2025-10-31
    genre: vocaloid
    isrc code: QT66K2568183
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T20:19:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c210c20770a32a76af06f45478e3e08a93450b503fe531d81e0f801eff193b3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958203
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958203
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66K2568183
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T23:21:42Z
    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 0x7c210c20770a32a76af06f45478e3e08a93450b503fe531d81e0f801eff193b3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:21:42Z), 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/QT66K2568183.
      date published: 2026-07-15T23:21:42Z
    audio: むちゃ子の歌 (feat. 初音ミク)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.002
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.792
      additional property: Energy
        type: PropertyValue
        value: 0.8
      additional property: Speechiness
        type: PropertyValue
        value: 0.225
      additional property: Acousticness
        type: PropertyValue
        value: 0.072
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.025
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.798
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.463
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor