Roundhead (Italy)
type: MusicGroup
popularity: 6
followers: 231
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbcfdbb89b38a899c0a2f358bc0fb7595285dbbec801f96581dc12f6d8df57303
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a42db7f2-1b87-4793-beff-8be74b9a509e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a42db7f2-1b87-4793-beff-8be74b9a509e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a42db7f2-1b87-4793-beff-8be74b9a509e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbcfdbb89b38a899c0a2f358bc0fb7595285dbbec801f96581dc12f6d8df57303","name":"Roundhead (Italy)","registered_at":"2026-06-20T06:56:33Z","symbol":"NIM1547334","token_address":"0x616ed6d70864de87f2411d806a788b3183795a1c","type":"artist","uuid":"a42db7f2-1b87-4793-beff-8be74b9a509e"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfdbb89b38a899c0a2f358bc0fb7595285dbbec801f96581dc12f6d8df57303. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a42db7f2-1b87-4793-beff-8be74b9a509e.json and https://artists.proofprofile.net/proofs/artist/a42db7f2-1b87-4793-beff-8be74b9a509e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xbcfdbb89b38a899c0a2f358bc0fb7595285dbbec801f96581dc12f6d8df57303","name":"Roundhead (Italy)","registered_at":"2026-06-20T06:56:33Z","symbol":"NIM1547334","token_address":"0x616ed6d70864de87f2411d806a788b3183795a1c","type":"artist","uuid":"a42db7f2-1b87-4793-beff-8be74b9a509e"}
album: Around Tonight EP
  type: MusicAlbum
  date published: 2013-03-18
album: Sound From The Heaven EP
  type: MusicAlbum
  date published: 2013-11-01
album: Trip To Space EP
  type: MusicAlbum
  date published: 2013-11-21
album: Nonsense EP
  type: MusicAlbum
  date published: 2013-12-02
album: Terror EP
  type: MusicAlbum
  date published: 2014-02-17
album: Enigmatic Road EP
  type: MusicAlbum
  date published: 2014-06-23
album: Help from Unknown
  type: MusicAlbum
  date published: 2015-05-19
album: Room
  type: MusicAlbum
  date published: 2015-07-13
album: Endless Wire
  type: MusicAlbum
  date published: 2016-01-31
album: Endless Circle
  type: MusicAlbum
  date published: 2016-10-10
  track: The Sloth - Original Mix
    type: MusicRecording
    duration: PT6M37S
    duration ms: 397153
    explicit: false
    by artist: Roundhead (Italy)
    in album: Endless Circle
      type: MusicAlbum
      date published: 2016-10-10
    isrc code: US83Z1651647
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T22:28:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc34cb117050feb2eee54ca9044ade787c7580e966e8f99ecb34169b310c7902a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958208
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958208
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z1651647
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T22:40:25Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34cb117050feb2eee54ca9044ade787c7580e966e8f99ecb34169b310c7902a. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/US83Z1651647.
      date published: 2026-07-15T22:40:25Z
    audio: The Sloth - Original Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.965
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.819
      additional property: Energy
        type: PropertyValue
        value: 0.689
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.095
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.926
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.177
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.373
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major