No-Maddz
type: MusicGroup
genre: reggae
description: The No-Maddz is a Jamaican art collective and roots reggae dub poetry band consisting of Sheldon "Sheppie" Shepherd and Everaldo "Evie" Creary. Both are recipients of the prestigious Jamaican Prime Mi
popularity: 7
followers: 1693
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb4a787522ed753d788cca8078a8f9956862587434549a4cbc4ca7120acc172d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa992e37-c196-4c8e-95b4-820cd4648d7d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa992e37-c196-4c8e-95b4-820cd4648d7d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa992e37-c196-4c8e-95b4-820cd4648d7d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0xcb4a787522ed753d788cca8078a8f9956862587434549a4cbc4ca7120acc172d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa992e37-c196-4c8e-95b4-820cd4648d7d.json and https://artists.proofprofile.net/proofs/artist/fa992e37-c196-4c8e-95b4-820cd4648d7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Rize Above Profanity (Poo Puku Poo Puku Poo) Radio Version
  type: MusicAlbum
  date published: 2011-08-19
album: Sort Out Yuh Life Jamaica! (Extended Play)
  type: MusicAlbum
  date published: 2011-12-26
album: Romance - Single
  type: MusicAlbum
  date published: 2014-04-29
album: Romance - Single
  type: MusicAlbum
  date published: 2014-04-29
album: Shotta-Single
  type: MusicAlbum
  date published: 2014-10-21
album: Shotta-Single
  type: MusicAlbum
  date published: 2014-10-21
  track: Shotta
    type: MusicRecording
    duration: PT5M4S
    duration ms: 304431
    explicit: false
    by artist: No-Maddz
    in album: Shotta-Single
      type: MusicAlbum
      date published: 2014-10-21
    genre: reggae
    isrc code: JMB231400003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T20:23:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8cc457d5518fb1dc688dba8da063e10bede57588d5d99619cf585af1441d300
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958060
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958060
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JMB231400003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T20:39:42Z
    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 0xb8cc457d5518fb1dc688dba8da063e10bede57588d5d99619cf585af1441d300. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JMB231400003.
      date published: 2026-07-14T20:39:42Z
    audio: Shotta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.835
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.82
      additional property: Energy
        type: PropertyValue
        value: 0.843
      additional property: Speechiness
        type: PropertyValue
        value: 0.173
      additional property: Acousticness
        type: PropertyValue
        value: 0.483
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.148
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.7
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.932
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: No-Maddz (Sly and Robbie Presents)
  type: MusicAlbum
  date published: 2015-01-27
album: Promises
  type: MusicAlbum
  date published: 2016-08-19
album: Promises
  type: MusicAlbum
  date published: 2016-08-19
album: Promises
  type: MusicAlbum
  date published: 2016-08-19
album: Breadfruit and Banana
  type: MusicAlbum
  date published: 2016-11-01
album: Unite Us
  type: MusicAlbum
  date published: 2016-12-02
album: Clarkz Like Dis
  type: MusicAlbum
  date published: 2018-06-22
album: The No-Maddz in Town
  type: MusicAlbum
  date published: 2019-03-22