Jeff Duff
type: MusicGroup
description: Geoff "Jeff" Stephen Duff, or Duffo, (born 1956) is an Australian singer/cabaret performer in the tenor range, who in his career has used various personae, wardrobe, and satire as features of his perf
popularity: 7
followers: 600
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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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  date published: 2026-06-21T20:46:40Z
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album: Presents Snow White... And the Eight Straights
  type: MusicAlbum
  date published: 1973
album: Presents Snow White... And the Eight Straights
  type: MusicAlbum
  date published: 1973-07-01
album: Nah, Tellus Wh't Kush Means Yer Great Sausage
  type: MusicAlbum
  date published: 1975-01-07
album: Nah, Tellus Wh't Kush Means Yer Great Sausage
  type: MusicAlbum
  date published: 1975-07-01
album: The Disappearing Boy
  type: MusicAlbum
  date published: 1980-01-07
album: The Disappearing Boy
  type: MusicAlbum
  date published: 1980-07-01
album: The Disappearing Boy
  type: MusicAlbum
  date published: 1980-07-01
album: Bob the Birdman
  type: MusicAlbum
  date published: 1981-07-01
album: Bob the Birdman
  type: MusicAlbum
  date published: 1981-07-01
album: Bob the Birdman
  type: MusicAlbum
  date published: 1981-07-01
album: Lexicon
  type: MusicAlbum
  date published: 1982-07-01
album: Lexicon
  type: MusicAlbum
  date published: 1983
album: Cyril Trotts to Bogna
  type: MusicAlbum
  date published: 1985-01-07
album: Cyril Trotts to Bogna
  type: MusicAlbum
  date published: 1985-07-01
album: Jeff Duff Orchestra
  type: MusicAlbum
  date published: 1989-07-01
album: Angels & Rascals
  type: MusicAlbum
  date published: 1994-01-07
album: Angels & Rascals
  type: MusicAlbum
  date published: 1994-07-01
album: Angels & Rascals
  type: MusicAlbum
  date published: 1994-07-01
album: Alone & Paranoid
  type: MusicAlbum
  date published: 1998-01-07
album: Alien Sex Gods
  type: MusicAlbum
  date published: 1998-01-07
album: Kiss My Apocalypse
  type: MusicAlbum
  date published: 1998-01-07
album: Alien Sex Gods
  type: MusicAlbum
  date published: 1998-07-01
album: Kiss My Apocalypse
  type: MusicAlbum
  date published: 1998-07-01
album: Alone & Paranoid
  type: MusicAlbum
  date published: 1998-07-01
album: Martian Girls Are Easy
  type: MusicAlbum
  date published: 1999-01-07
album: Duffo
  type: MusicAlbum
  date published: 1999-01-07
album: Martian Girls Are Easy
  type: MusicAlbum
  date published: 1999-07-01
album: Duffo
  type: MusicAlbum
  date published: 1999-07-01
album: Duffo
  type: MusicAlbum
  date published: 1999-07-01
album: Martian Girls Are Easy
  type: MusicAlbum
  date published: 1999-07-01
album: Live & Acoustic
  type: MusicAlbum
  date published: 2002-01-07
album: Live & Acoustic
  type: MusicAlbum
  date published: 2002-07-01
album: Ground Control to Frank Sinatra
  type: MusicAlbum
  date published: 2004-07-01
album: Ground Control to Frank Sinatra
  type: MusicAlbum
  date published: 2004-07-01
album: Lost in the Stars
  type: MusicAlbum
  date published: 2006-01-07
album: Lost in the Stars
  type: MusicAlbum
  date published: 2006-07-01
album: Lost in the Stars
  type: MusicAlbum
  date published: 2006-07-01
album: So Quiet
  type: MusicAlbum
  date published: 2007-07-01
album: Fragile Spaceman
  type: MusicAlbum
  date published: 2011-01-07
album: Fragile Spaceman
  type: MusicAlbum
  date published: 2011-07-01
album: Fragile Spaceman
  type: MusicAlbum
  date published: 2011-07-01
album: Walking on Eggshells
  type: MusicAlbum
  date published: 2014-07-01
album: Walking on Eggshells
  type: MusicAlbum
  date published: 2014-07-01
album: Walking on Eggshells
  type: MusicAlbum
  date published: 2014-09-29
album: Walking on Eggshells
  type: MusicAlbum
  date published: 2014-10-17
album: Notso Strait
  type: MusicAlbum
  date published: 2015
album: Gonna Send the Boys Around
  type: MusicAlbum
  date published: 2015-11-17
album: Gonna Send the Boys Around
  type: MusicAlbum
  date published: 2015-11-17
album: Banananana
  type: MusicAlbum
  date published: 2015-11-17
album: Elizabeth Bay
  type: MusicAlbum
  date published: 2015-11-17
album: Notso Strait
  type: MusicAlbum
  date published: 2015-11-17
album: Elizabeth Bay
  type: MusicAlbum
  date published: 2015-11-17
album: Lexicon
  type: MusicAlbum
  date published: 2015-11-19
album: Holiday in Transylvania
  type: MusicAlbum
  date published: 2015-11-19
album: Her Majesty Requests
album: Bowie Unzipped (Live)
album: Bowie Unzipped
album: Being Jeff Duff
track: Twisted System (feat. Jeff Duff)
track: Bottle O' Wine (feat. Jeff Duff)

Holiday in Transylvania
type: MusicAlbum
date published: 2015-11-19

Banananana
type: MusicAlbum
date published: 2015-11-25

Notso Strait
type: MusicAlbum
date published: 2015-11-25

Banananana
type: MusicAlbum
date published: 2015-11-25

Her Majesty Requests
type: MusicAlbum
date published: 2016-01-05

Her Majesty Requests
type: MusicAlbum
date published: 2016-05-01

Her Majesty Requests
type: MusicAlbum
date published: 2016-05-01

Bowie Unzipped (Live)
type: MusicAlbum
date published: 2017-02-19

Bowie Unzipped
type: MusicAlbum
date published: 2017-02-19

Bowie Unzipped
type: MusicAlbum
date published: 2017-02-19

Being Jeff Duff
type: MusicAlbum
date published: 2023-10-13

Gonna Send the Boys Around
type: MusicAlbum
date published: 2025-08-01

Twisted System (feat. Jeff Duff)
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duration: PT4M14S
duration ms: 254879
explicit: false
by artist: Jon Lord
by artist: The Hoochie Coochie Men
by artist: Jeff Duff
in album: Danger: White Men Dancing
  type: MusicAlbum
  date published: 2007-09-28
genre: rock-keyboard
isrc code: AUTQ00700022
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62653e9799480b5752ce76ad18feb4ff9c1209ad762f7111ebf5b6a7800d369f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUTQ00700022.
  date published: 2026-07-31T00:26:26Z
audio: Twisted System (feat. Jeff Duff)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Speechiness
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    value: 0.073
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.207
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bottle O' Wine (feat. Jeff Duff)
type: MusicRecording
duration: PT4M58S
duration ms: 298799
explicit: false
by artist: Jon Lord
by artist: The Hoochie Coochie Men
by artist: Jeff Duff
in album: Danger: White Men Dancing
  type: MusicAlbum
  date published: 2007-09-28
genre: rock-keyboard
isrc code: AUTQ00700030
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 0x88073bac4e0540556f0f3f5a2fba08db03ab8663d67e81c9a89fde4a8bac5a02. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUTQ00700030.
  date published: 2026-07-31T08:26:41Z
audio: Bottle O' Wine (feat. Jeff Duff)
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