Dave Greenslade
type: MusicGroup
genre: art rock
genre: krautrock
genre: progressive rock
description: David John Greenslade (born 18 January 1943) is an English composer and keyboard player. He has played with Colosseum from the beginning in 1968 until the farewell concert in 2015 and also from 1973 i
popularity: 8
followers: 1010
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae716b6fec0112bfeb10afe2813debe9fbe3be735ab94534236e059ec257263. 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/8ad14459-025e-4804-a53c-e5dd01be87fa.json and https://artists.proofprofile.net/proofs/artist/8ad14459-025e-4804-a53c-e5dd01be87fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
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album: Cactus Choir
  type: MusicAlbum
  date published: 1976
album: Cactus Choir
  type: MusicAlbum
  date published: 1976-04-01
album: From The Discworld
  type: MusicAlbum
  date published: 1994-01-01
  track: Wizard's Staff Has A Knob On The End
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    duration: PT3M56S
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    explicit: false
    by artist: Dave Greenslade
    in album: From The Discworld
      type: MusicAlbum
      date published: 1994-01-01
    genre: art rock
    genre: krautrock
    genre: progressive rock
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f50bc82fb1000018b2dda6c141007c0e9547ba6622f7815844c9cfadec79f91. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAAA9400936.
      date published: 2026-07-06T06:56:49Z
    audio: Wizard's Staff Has A Knob On The End
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.494
      additional property: Musical Key
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        value: 7
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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        value: -11.561
      additional property: Key Name
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album: Routes - Roots
  type: MusicAlbum
  date published: 2011-09-02
album: Routes/Roots
  type: MusicAlbum
  date published: 2012-10-11
album: Routes / Roots
  type: MusicAlbum
  date published: 2012-12-01
album: Cactus Choir
  type: MusicAlbum
  date published: 2014-11-03
album: Cactus Choir (Bonus Track Version)
  type: MusicAlbum
  date published: 2014-12-08
album: Time To Make Hay - A Collection Of Original Recordings
  type: MusicAlbum
  date published: 2015-07-06
album: Time To Make Hay (A Collection Of Original Recordings)
  type: MusicAlbum
  date published: 2015-07-06
album: G & T
  type: MusicAlbum
  date published: 2021-03-05
album: G & T
  type: MusicAlbum
  date published: 2022-02-25