Marcus I
type: MusicGroup
genre: dub
genre: rocksteady
genre: roots reggae
popularity: 11
followers: 388
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a587d740217067e3f2a315f3c5360767fd384e3c9ab37abd621121a29e30029
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/340af849-e9d2-4a90-a7f6-b284f92fb30c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/340af849-e9d2-4a90-a7f6-b284f92fb30c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/340af849-e9d2-4a90-a7f6-b284f92fb30c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a587d740217067e3f2a315f3c5360767fd384e3c9ab37abd621121a29e30029","name":"Marcus I","registered_at":"2026-06-14T09:55:48Z","symbol":"NIM0416589","token_address":"0xed7b620454cae5cedfa91c024c19bd6517c6b893","type":"artist","uuid":"340af849-e9d2-4a90-a7f6-b284f92fb30c"}
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 0x1a587d740217067e3f2a315f3c5360767fd384e3c9ab37abd621121a29e30029. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/340af849-e9d2-4a90-a7f6-b284f92fb30c.json and https://artists.proofprofile.net/proofs/artist/340af849-e9d2-4a90-a7f6-b284f92fb30c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x1a587d740217067e3f2a315f3c5360767fd384e3c9ab37abd621121a29e30029","name":"Marcus I","registered_at":"2026-06-14T09:55:48Z","symbol":"NIM0416589","token_address":"0xed7b620454cae5cedfa91c024c19bd6517c6b893","type":"artist","uuid":"340af849-e9d2-4a90-a7f6-b284f92fb30c"}
album: Inner Calling
  type: MusicAlbum
  date published: 2016-12-16
album: Inner Calling
  type: MusicAlbum
  date published: 2016-12-16
album: Inner Calling
  type: MusicAlbum
  date published: 2017-12-07
album: Proverbs
  type: MusicAlbum
  date published: 2020-09-04
album: 2000 Years Showcase
  type: MusicAlbum
  date published: 2021-04-01
album: Protection
  type: MusicAlbum
  date published: 2022-07-02
album: Dread Inna Rocket
  type: MusicAlbum
  date published: 2022-11-12
album: Cut a Wire Showcase
  type: MusicAlbum
  date published: 2023-10-06
album: Heavy Manners
  type: MusicAlbum
  date published: 2024-09-20
album: Listen Up My Son
  type: MusicAlbum
  date published: 2025-03-07
  track: Listen Up My Son
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222506
    explicit: false
    by artist: Marcus I
    in album: Listen Up My Son
      type: MusicAlbum
      date published: 2025-03-07
    genre: dub
    genre: rocksteady
    genre: roots reggae
    isrc code: QZ79M2400032
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:03:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa4756c5a364f46b29deb1b2a8d2a43c5e5a2611387bfd4c249a0e39cf3718c23
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ79M2400032
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xa4756c5a364f46b29deb1b2a8d2a43c5e5a2611387bfd4c249a0e39cf3718c23. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ79M2400032.
      date published: 2026-07-04T11:19:20Z
    audio: Listen Up My Son
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.172
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.868
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.445
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.185
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.915
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.551
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Longtime Warrior
  type: MusicAlbum
  date published: 2025-05-30
album: Mr. Money Man
  type: MusicAlbum
  date published: 2025-08-08
album: Wax Box
  type: MusicAlbum
  date published: 2025-09-19
album: Taste of Love
  type: MusicAlbum
  date published: 2025-10-30