Mark D
type: MusicGroup
description: Mark D, born Mark Randall,Deedes, Henry. "Vine's Stuckist rival sticks one on her at exhibition", The Independent, 13 February 2008. Retrieved 13 February 2008. is a British punk musician (guitarist a
popularity: 21
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02411bf825226dfbae172ec9add669452e158a4c9e431c357074b4d65c95542b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/619cdd3d-c275-47fc-871f-ebc4865e8063.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/619cdd3d-c275-47fc-871f-ebc4865e8063.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/619cdd3d-c275-47fc-871f-ebc4865e8063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02411bf825226dfbae172ec9add669452e158a4c9e431c357074b4d65c95542b","name":"Mark D","registered_at":"2026-06-11T22:51:31Z","symbol":"NIM0127612","token_address":"0xdd8c57abfe2a9e8d6086fb7ce5bd97d2aed148da","type":"artist","uuid":"619cdd3d-c275-47fc-871f-ebc4865e8063"}
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 0x02411bf825226dfbae172ec9add669452e158a4c9e431c357074b4d65c95542b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/619cdd3d-c275-47fc-871f-ebc4865e8063.json and https://artists.proofprofile.net/proofs/artist/619cdd3d-c275-47fc-871f-ebc4865e8063.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x02411bf825226dfbae172ec9add669452e158a4c9e431c357074b4d65c95542b","name":"Mark D","registered_at":"2026-06-11T22:51:31Z","symbol":"NIM0127612","token_address":"0xdd8c57abfe2a9e8d6086fb7ce5bd97d2aed148da","type":"artist","uuid":"619cdd3d-c275-47fc-871f-ebc4865e8063"}
album: MilkShake
  type: MusicAlbum
  date published: 2019-09-10
  track: MilkShake
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194516
    explicit: false
    by artist: CityBoyz
    by artist: Mark D
    in album: MilkShake
      type: MusicAlbum
      date published: 2019-09-10
    genre: brazilian-bass
    isrc code: USLZJ1978425
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-05T14:08:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfd5b49153557a41b4c803200501f4de99ec8f032a7bc85d68be576864af0f92c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953528
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953528
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ1978425
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T15:41:10Z
    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 0xfd5b49153557a41b4c803200501f4de99ec8f032a7bc85d68be576864af0f92c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLZJ1978425.
      date published: 2026-06-13T15:41:10Z
    audio: MilkShake
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.319
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.91
      additional property: Energy
        type: PropertyValue
        value: 0.396
      additional property: Speechiness
        type: PropertyValue
        value: 0.143
      additional property: Acousticness
        type: PropertyValue
        value: 0.019
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.148
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.141
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.017
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Jack your Body
  type: MusicAlbum
  date published: 2018-03-27