HMO a.k.a Paw Laboratory.
type: MusicGroup
genre: vocaloid
popularity: 5
followers: 173
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a7b1a66faab283d13b89a44d45eef00fd6c7dde96e88e2de31a2e0a5fb9a1a5
additional property: OTSHash
additional property: OTSBitcoinBlock
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  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/ee87043f-7160-409a-8a66-1fb6c0b20989.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/ee87043f-7160-409a-8a66-1fb6c0b20989.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee87043f-7160-409a-8a66-1fb6c0b20989
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a7b1a66faab283d13b89a44d45eef00fd6c7dde96e88e2de31a2e0a5fb9a1a5","name":"HMO a.k.a Paw Laboratory.","registered_at":"2026-06-21T11:46:27Z","symbol":"NIM1914801","token_address":"0x440d04447a6ea59ffc77294d135293f6c08929df","type":"artist","uuid":"ee87043f-7160-409a-8a66-1fb6c0b20989"}
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 0x8a7b1a66faab283d13b89a44d45eef00fd6c7dde96e88e2de31a2e0a5fb9a1a5. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee87043f-7160-409a-8a66-1fb6c0b20989.json and https://artists.proofprofile.net/proofs/artist/ee87043f-7160-409a-8a66-1fb6c0b20989.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x8a7b1a66faab283d13b89a44d45eef00fd6c7dde96e88e2de31a2e0a5fb9a1a5","name":"HMO a.k.a Paw Laboratory.","registered_at":"2026-06-21T11:46:27Z","symbol":"NIM1914801","token_address":"0x440d04447a6ea59ffc77294d135293f6c08929df","type":"artist","uuid":"ee87043f-7160-409a-8a66-1fb6c0b20989"}
album: Hatsune Miku Orchestra
  type: MusicAlbum
  date published: 2010-08-26
  track: KIMI NI MUNE KYUN - UWAKI NA VACANCES
    type: MusicRecording
    duration: PT4M29S
    duration ms: 269706
    explicit: false
    by artist: HMO a.k.a Paw Laboratory.
    in album: Hatsune Miku Orchestra
      type: MusicAlbum
      date published: 2010-08-26
    genre: vocaloid
    isrc code: JPJ930900039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ930900039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x19c2f7f6bac91296afc69dfa7828ba520b1b84cb941eeb26e02dd6795fd32ed9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPJ930900039.
      date published: 2026-07-05T18:48:28Z
    audio: KIMI NI MUNE KYUN - UWAKI NA VACANCES
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.995
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.644
      additional property: Energy
        type: PropertyValue
        value: 0.967
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.272
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.549
      additional property: Liveness
        type: PropertyValue
        value: 0.333
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.964
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.469
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: MIKU NO POP
  type: MusicAlbum
  date published: 2012-08-14
album: MULTIPLISH
  type: MusicAlbum
  date published: 2012-12-19