David Harper
type: MusicGroup
description: David or Dave Harper may refer to: Arts and entertainment David Harper or Edwin Corley (1931–1981), American novelist David M. Harper (architect) (born 1953), American architect and design/build entr
popularity: 3
followers: 383
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x147c68c8c68cbc4cef7e2015dec9d79d69c759875152884abf837d1cf02c4adb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d05b8089-7b29-4989-8126-1e4c9a4d8b34.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d05b8089-7b29-4989-8126-1e4c9a4d8b34.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d05b8089-7b29-4989-8126-1e4c9a4d8b34
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x147c68c8c68cbc4cef7e2015dec9d79d69c759875152884abf837d1cf02c4adb","name":"David Harper","registered_at":"2026-06-21T00:36:43Z","symbol":"NIM1764099","token_address":"0x52407c2579d277c3a7a29c420d06cb43b8bb8c65","type":"artist","uuid":"d05b8089-7b29-4989-8126-1e4c9a4d8b34"}
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 0x147c68c8c68cbc4cef7e2015dec9d79d69c759875152884abf837d1cf02c4adb. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05b8089-7b29-4989-8126-1e4c9a4d8b34.json and https://artists.proofprofile.net/proofs/artist/d05b8089-7b29-4989-8126-1e4c9a4d8b34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x147c68c8c68cbc4cef7e2015dec9d79d69c759875152884abf837d1cf02c4adb","name":"David Harper","registered_at":"2026-06-21T00:36:43Z","symbol":"NIM1764099","token_address":"0x52407c2579d277c3a7a29c420d06cb43b8bb8c65","type":"artist","uuid":"d05b8089-7b29-4989-8126-1e4c9a4d8b34"}
album: Lavish
  type: MusicAlbum
  date published: 2004-08-22
album: Beautiful Sound
  type: MusicAlbum
  date published: 2014-07-08
album: More of You
  type: MusicAlbum
  date published: 2015-06-17
album: Living Water
  type: MusicAlbum
  date published: 2016-04-16
album: Enough
  type: MusicAlbum
  date published: 2018-06-01
album: Lovely
  type: MusicAlbum
  date published: 2019-10-17
album: ALWAYS BE
  type: MusicAlbum
  date published: 2022-07-28
  track: Your Goodness
    type: MusicRecording
    duration: PT5M10S
    duration ms: 310103
    explicit: false
    by artist: David Harper
    in album: ALWAYS BE
      type: MusicAlbum
      date published: 2022-07-28
    isrc code: QZMEN2246150
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T17:41:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x413855208d452b0e65cc390363e4d6718515d37b30c7760b9677a61faacd4940
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959159
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959159
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2246150
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T17:48:40Z
    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 0x413855208d452b0e65cc390363e4d6718515d37b30c7760b9677a61faacd4940. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZMEN2246150.
      date published: 2026-07-22T17:48:40Z
    audio: Your Goodness
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.986
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.536
      additional property: Energy
        type: PropertyValue
        value: 0.407
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.228
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.33
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.241
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.614
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: downtown kind of love
  type: MusicAlbum
  date published: 2025-02-14