Human Hamster Hybrids
type: MusicGroup
genre: ska
genre: ska punk
popularity: 5
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf695d433911a17cbde0a9452691ac6003bc67e562916b5a221e0d6864e4b8a9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87055eb2-a85f-4ce0-9b8e-78a50e5ea181.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87055eb2-a85f-4ce0-9b8e-78a50e5ea181.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87055eb2-a85f-4ce0-9b8e-78a50e5ea181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf695d433911a17cbde0a9452691ac6003bc67e562916b5a221e0d6864e4b8a9c","name":"Human Hamster Hybrids","registered_at":"2026-06-17T12:45:55Z","symbol":"NIM1399744","token_address":"0x6bd2c9ce06a7838e269c5c28515534733a9ae96c","type":"artist","uuid":"87055eb2-a85f-4ce0-9b8e-78a50e5ea181"}
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 0xf695d433911a17cbde0a9452691ac6003bc67e562916b5a221e0d6864e4b8a9c. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87055eb2-a85f-4ce0-9b8e-78a50e5ea181.json and https://artists.proofprofile.net/proofs/artist/87055eb2-a85f-4ce0-9b8e-78a50e5ea181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf695d433911a17cbde0a9452691ac6003bc67e562916b5a221e0d6864e4b8a9c","name":"Human Hamster Hybrids","registered_at":"2026-06-17T12:45:55Z","symbol":"NIM1399744","token_address":"0x6bd2c9ce06a7838e269c5c28515534733a9ae96c","type":"artist","uuid":"87055eb2-a85f-4ce0-9b8e-78a50e5ea181"}
album: Dance Classics
  type: MusicAlbum
  date published: 2001-03-01
  track: Mama Mia
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170213
    explicit: false
    by artist: Human Hamster Hybrids
    in album: Dance Classics
      type: MusicAlbum
      date published: 2001-03-01
    genre: ska
    genre: ska punk
    isrc code: DEG109901010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T15:32:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a47dffd2cf7d32a95abf192350cd066d0acdd623898bd247ebe546942e4dc5f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEG109901010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x8a47dffd2cf7d32a95abf192350cd066d0acdd623898bd247ebe546942e4dc5f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEG109901010.
      date published: 2026-07-16T16:14:30Z
    audio: Mama Mia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.479
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.523
      additional property: Energy
        type: PropertyValue
        value: 0.838
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.009
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.809
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.508
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Radio Punkrock
  type: MusicAlbum
  date published: 2006-12-29
album: Last Christmas
  type: MusicAlbum
  date published: 2019-12-06