David Madden
type: MusicGroup
genre: reggae
genre: rocksteady
genre: roots reggae
genre: ska
description: David Madden may refer to: David Madden (novelist) (born 1933), American novelist David Madden (musician) (born 1943), Jamaican reggae trumpeter / singer / songwriter David Madden (entrepreneur), Aust
popularity: 3
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x66af5ae9bddd5601519e404fd7a44973b139d2ea9302ad5b47333704983e4b9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3edf163-ac46-4c90-b808-17b7fd8cda3c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3edf163-ac46-4c90-b808-17b7fd8cda3c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3edf163-ac46-4c90-b808-17b7fd8cda3c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66af5ae9bddd5601519e404fd7a44973b139d2ea9302ad5b47333704983e4b9f","name":"David Madden","registered_at":"2026-06-20T20:09:20Z","symbol":"NIM1703375","token_address":"0x1b871d2fb5b0b3adbec82b55bc3f20eda2ae082c","type":"artist","uuid":"c3edf163-ac46-4c90-b808-17b7fd8cda3c"}
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 0x66af5ae9bddd5601519e404fd7a44973b139d2ea9302ad5b47333704983e4b9f. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3edf163-ac46-4c90-b808-17b7fd8cda3c.json and https://artists.proofprofile.net/proofs/artist/c3edf163-ac46-4c90-b808-17b7fd8cda3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x66af5ae9bddd5601519e404fd7a44973b139d2ea9302ad5b47333704983e4b9f","name":"David Madden","registered_at":"2026-06-20T20:09:20Z","symbol":"NIM1703375","token_address":"0x1b871d2fb5b0b3adbec82b55bc3f20eda2ae082c","type":"artist","uuid":"c3edf163-ac46-4c90-b808-17b7fd8cda3c"}
album: Reggae Horn 1969-83/Early David Madden
  type: MusicAlbum
  date published: 1983
album: Cyber Charged Ska
  type: MusicAlbum
  date published: 1997
album: Horny Reggae Horn
  type: MusicAlbum
  date published: 1999
album: Cyber Charged
  type: MusicAlbum
  date published: 1999-08-24
album: Cyber Charged
  type: MusicAlbum
  date published: 1999-08-24
album: David Madden & Passeiros
  type: MusicAlbum
  date published: 2000
album: Horny Reggae Horn
  type: MusicAlbum
  date published: 2000-11-14
album: Horny Reggae Horn
  type: MusicAlbum
  date published: 2000-11-14
album: Cybernetix Online
  type: MusicAlbum
  date published: 2004-01-01
album: Long Live Reggae Music
  type: MusicAlbum
  date published: 2008
album: Long Live Reggae Music from Bob Marley to Zap Pow
  type: MusicAlbum
  date published: 2008-12-02
album: Long Live Reggae Music From Bob Marley to Zap Pow
  type: MusicAlbum
  date published: 2008-12-02
album: Long Live Reggae Music from Bob Marley to Zap Pow
  type: MusicAlbum
  date published: 2008-12-02
album: David Madden & Passeiros
  type: MusicAlbum
  date published: 2009-01-01
album: Horny Reggae Horn
  type: MusicAlbum
  date published: 2009-01-01
album: Reggae Horn 1969-83, Early David Madden
  type: MusicAlbum
  date published: 2009-01-01
album: Luv Hold U 4 Ever
  type: MusicAlbum
  date published: 2010-03-23
album: Biography
  type: MusicAlbum
  date published: 2010-03-23
album: Biography
  type: MusicAlbum
  date published: 2010-03-23
album: Biography
  type: MusicAlbum
  date published: 2010-03-23
album: Luv Hold U 4 Ever
  type: MusicAlbum
  date published: 2010-03-23
album: Wow! Www.Ska
  type: MusicAlbum
  date published: 2010-11-25
album: Fast Lane Slow (Fast Lane) - Single
  type: MusicAlbum
  date published: 2011-02-01
album: Digital Sound - Single
  type: MusicAlbum
  date published: 2011-02-10
album: Fast Lane Digital / Digital Sound
  type: MusicAlbum
  date published: 2011-02-10
album: Pon De Internet
  type: MusicAlbum
  date published: 2013-01-05
album: 4 Good Measure
  type: MusicAlbum
  date published: 2014-04-08
album: Nice We Met
  type: MusicAlbum
  date published: 2015-10-22
album: Heaven Compliment Dub
  type: MusicAlbum
  date published: 2015-12-07
album: Shake-Yu-Role
  type: MusicAlbum
  date published: 2016-01-21
album: Nice We Met ..Dance Mix
  type: MusicAlbum
  date published: 2016-07-24
album: Reggae Luv Hold U 4ever
  type: MusicAlbum
  date published: 2017-01-19
album: True Love
  type: MusicAlbum
  date published: 2017-01-23
album: Rocking Till Kingdom Come
  type: MusicAlbum
  date published: 2017-01-26
album: Ah Luv Her
  type: MusicAlbum
  date published: 2017-04-18
album: Inna Di House
  type: MusicAlbum
  date published: 2018-03-31
album: Roots Inna Di House
  type: MusicAlbum
  date published: 2018-03-31
album: Rise & Sexy Riddim Medley
  type: MusicAlbum
  date published: 2018-09-06
album: Rise & Sexy Riddim
  type: MusicAlbum
  date published: 2018-09-06
album: Sexy Lady
  type: MusicAlbum
  date published: 2018-09-06
album: Rise & Shine
  type: MusicAlbum
  date published: 2018-09-06
album: Bizzy Bizzy (Remix)
  type: MusicAlbum
  date published: 2019-07-01