Four Hands
type: MusicGroup
description: Four Hands may refer to: Four Hands (film), 2014 Taiwanese film Four Hands (TV series), 2026 South Korean television series Piano four hands, a type of piano duet See also Four Hands Dinner, a
popularity: 13
followers: 1426
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x88bfe00db6517b6633a90ae2c60d72036f47a3fad6165f4fce45a87766ca07c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf29b19b-869e-48d5-9e19-0c675dc1afa5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf29b19b-869e-48d5-9e19-0c675dc1afa5.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf29b19b-869e-48d5-9e19-0c675dc1afa5
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bfe00db6517b6633a90ae2c60d72036f47a3fad6165f4fce45a87766ca07c7. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf29b19b-869e-48d5-9e19-0c675dc1afa5.json and https://artists.proofprofile.net/proofs/artist/cf29b19b-869e-48d5-9e19-0c675dc1afa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x88bfe00db6517b6633a90ae2c60d72036f47a3fad6165f4fce45a87766ca07c7","name":"Four Hands","registered_at":"2026-06-15T02:18:26Z","symbol":"NIM0651080","token_address":"0x829c989e10f137945e63689b74147d4f1f55ea55","type":"artist","uuid":"cf29b19b-869e-48d5-9e19-0c675dc1afa5"}
album: Hizou
  type: MusicAlbum
  date published: 2010-12-13
album: Home
  type: MusicAlbum
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album: Osobucco Ep
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  date published: 2015-06-08
album: Some Guys Run and Some Guys Stay
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album: Darwin
  type: MusicAlbum
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album: Darwin
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album: One Voice
  type: MusicAlbum
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album: Rivers of Light
  type: MusicAlbum
  date published: 2017-10-30
album: One Voice
  type: MusicAlbum
  date published: 2017-10-30
album: Helium
  type: MusicAlbum
  date published: 2017-10-30
album: Back to Earth
  type: MusicAlbum
  date published: 2017-10-30
album: Along the Way
  type: MusicAlbum
  date published: 2017-10-30
album: The Color of Skies
  type: MusicAlbum
  date published: 2017-10-30
album: The Color of Skies
  type: MusicAlbum
  date published: 2017-10-30
album: One Voice
  type: MusicAlbum
  date published: 2017-10-30
album: Back to Earth
  type: MusicAlbum
  date published: 2017-10-30
album: Along the Way
  type: MusicAlbum
  date published: 2017-10-30
album: Rivers of Light
  type: MusicAlbum
  date published: 2017-10-30
album: Redemption EP
  type: MusicAlbum
  date published: 2019-09-05
track: Hizou
  type: MusicRecording
  duration: PT9M4S
  duration ms: 544093
  explicit: false
  by artist: Four Hands
  in album: 5 Years of Claremont 56
    type: MusicAlbum
    date published: 2012-06-18
  isrc code: GBSWL1000028
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-31T19:30:35+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/960455
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSWL1000028
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T19:53:13Z
  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 0x71acae993c246bd25620c9104675555e956660852b3aa1ac006859c258ed1a9c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBSWL1000028.
    date published: 2026-07-31T19:53:13Z
  audio: Hizou
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.197
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.189
    additional property: Energy
      type: PropertyValue
      value: 0.147
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.62
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.827
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.099
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.536
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major