Dr. Mark Williams
type: MusicGroup
popularity: 4
followers: 483
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3421b2073a393ee97ed0f95752c51d225e5d35e44836e996502bef29cc778729
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/546ea1a3-1554-455d-b5fc-954420f0e2a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/546ea1a3-1554-455d-b5fc-954420f0e2a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/546ea1a3-1554-455d-b5fc-954420f0e2a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3421b2073a393ee97ed0f95752c51d225e5d35e44836e996502bef29cc778729","name":"Dr. Mark Williams","registered_at":"2026-06-16T19:05:32Z","symbol":"NIM1146801","token_address":"0x4d23be797104488d46c92acbd13190bebe57b117","type":"artist","uuid":"546ea1a3-1554-455d-b5fc-954420f0e2a1"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3421b2073a393ee97ed0f95752c51d225e5d35e44836e996502bef29cc778729. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/546ea1a3-1554-455d-b5fc-954420f0e2a1.json and https://artists.proofprofile.net/proofs/artist/546ea1a3-1554-455d-b5fc-954420f0e2a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x3421b2073a393ee97ed0f95752c51d225e5d35e44836e996502bef29cc778729","name":"Dr. Mark Williams","registered_at":"2026-06-16T19:05:32Z","symbol":"NIM1146801","token_address":"0x4d23be797104488d46c92acbd13190bebe57b117","type":"artist","uuid":"546ea1a3-1554-455d-b5fc-954420f0e2a1"}
album: Choices
  type: MusicAlbum
  date published: 2008-01-01
album: Everything
  type: MusicAlbum
  date published: 2011-08-01
album: When a Man Worships
  type: MusicAlbum
  date published: 2016-08-06
album: I Can't Breathe
  type: MusicAlbum
  date published: 2020-09-19
album: One Touch
  type: MusicAlbum
  date published: 2024-03-29
  track: Forever and Always
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226202
    explicit: false
    by artist: Dr. Mark Williams
    in album: One Touch
      type: MusicAlbum
      date published: 2024-03-29
    isrc code: USXYP2300002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:18:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa98a40195f262b0a5ee5fa3a9aaa5cc78aedee676e2e84e385202fc644834bfd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USXYP2300002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98a40195f262b0a5ee5fa3a9aaa5cc78aedee676e2e84e385202fc644834bfd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USXYP2300002.
      date published: 2026-07-05T01:12:41Z
    audio: Forever and Always
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.984
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.727
      additional property: Speechiness
        type: PropertyValue
        value: 0.096
      additional property: Acousticness
        type: PropertyValue
        value: 0.107
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.348
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.475
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.368
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: It's Working
  type: MusicAlbum
  date published: 2025-10-02