Rexx
type: MusicGroup
genre: afrobeat
genre: azonto
genre: hiplife
description: Rexx (restructured extended executor) is a high-level programming language developed at IBM by Mike Cowlishaw. Both proprietary and open source Rexx interpreters exist for a wide range of computing pl
album: Boku
  type: MusicAlbum
  date published: 2014-11-27
album: Sistah
  type: MusicAlbum
  date published: 2015-03-24
  track: Sistah
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247954
    explicit: false
    by artist: Rexx
    in album: Sistah
      type: MusicAlbum
      date published: 2015-03-24
    genre: afrobeat
    genre: azonto
    genre: hiplife
    isrc code: UK43Q1500223
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T07:21:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5de65d2cd2ff22ac69e5279fb478b5b3c70984279d42ec20083a28e4eb2f4f57
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK43Q1500223
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0x5de65d2cd2ff22ac69e5279fb478b5b3c70984279d42ec20083a28e4eb2f4f57. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UK43Q1500223.
      date published: 2026-07-08T03:20:19Z
    audio: Sistah
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.364
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.772
      additional property: Energy
        type: PropertyValue
        value: 0.827
      additional property: Speechiness
        type: PropertyValue
        value: 0.073
      additional property: Acousticness
        type: PropertyValue
        value: 0.383
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.903
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.79
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Original
  type: MusicAlbum
  date published: 2015-08-29
album: Shokoto
  type: MusicAlbum
  date published: 2015-08-29
album: Mmanya
  type: MusicAlbum
  date published: 2016-09-16
album: Run Away
  type: MusicAlbum
  date published: 2024-07-26