Martin Marks
type: MusicGroup
genre: celtic
popularity: 3
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fd1a3611a3103915ab7e54170b80fc29ac855be75ea3cd095856abbad1e06ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c82830c-d5ad-4539-916b-128de3ac8136.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c82830c-d5ad-4539-916b-128de3ac8136.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c82830c-d5ad-4539-916b-128de3ac8136
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fd1a3611a3103915ab7e54170b80fc29ac855be75ea3cd095856abbad1e06ff","name":"Martin Marks","registered_at":"2026-06-16T10:59:52Z","symbol":"NIM1030938","token_address":"0xca1974eabdf82380025dbd8405b9af75a5c27305","type":"artist","uuid":"3c82830c-d5ad-4539-916b-128de3ac8136"}
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 0x3fd1a3611a3103915ab7e54170b80fc29ac855be75ea3cd095856abbad1e06ff. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c82830c-d5ad-4539-916b-128de3ac8136.json and https://artists.proofprofile.net/proofs/artist/3c82830c-d5ad-4539-916b-128de3ac8136.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x3fd1a3611a3103915ab7e54170b80fc29ac855be75ea3cd095856abbad1e06ff","name":"Martin Marks","registered_at":"2026-06-16T10:59:52Z","symbol":"NIM1030938","token_address":"0xca1974eabdf82380025dbd8405b9af75a5c27305","type":"artist","uuid":"3c82830c-d5ad-4539-916b-128de3ac8136"}
album: Would You Consider Me?
  type: MusicAlbum
  date published: 2023-04-05
album: All the Dad She Has
  type: MusicAlbum
  date published: 2023-08-19
album: Down on my luck
  type: MusicAlbum
  date published: 2024-05-01
album: Irresistible
  type: MusicAlbum
  date published: 2024-10-12
  track: Irresistible
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237763
    explicit: false
    by artist: Martin Marks
    in album: Irresistible
      type: MusicAlbum
      date published: 2024-10-12
    genre: celtic
    isrc code: SEWDL6156388
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T00:49:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3cfdb0602881768999f2b84d83ea8ffaa5d1d7a464376e652cd761a4b3bcd431
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958633
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958633
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6156388
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:54:50Z
    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 0x3cfdb0602881768999f2b84d83ea8ffaa5d1d7a464376e652cd761a4b3bcd431. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/SEWDL6156388.
      date published: 2026-07-19T00:54:50Z
    audio: Irresistible
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.527
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.339
      additional property: Energy
        type: PropertyValue
        value: 0.689
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.042
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.884
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.568
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.243
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major