Marcus Mac
type: MusicGroup
popularity: 7
followers: 90
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e09f760d3ab33d7ad179a2600effd82f1c95e2b1d983774cf921bb78c2939b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b54423d4-0e00-47b1-8053-7a72c9d505e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b54423d4-0e00-47b1-8053-7a72c9d505e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b54423d4-0e00-47b1-8053-7a72c9d505e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3e09f760d3ab33d7ad179a2600effd82f1c95e2b1d983774cf921bb78c2939b8","name":"Marcus Mac","registered_at":"2026-06-20T14:34:13Z","symbol":"NIM1632545","token_address":"0xe70dad26eccf2168d0b46dac6944bea1267925c2","type":"artist","uuid":"b54423d4-0e00-47b1-8053-7a72c9d505e0"}
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 0x3e09f760d3ab33d7ad179a2600effd82f1c95e2b1d983774cf921bb78c2939b8. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b54423d4-0e00-47b1-8053-7a72c9d505e0.json and https://artists.proofprofile.net/proofs/artist/b54423d4-0e00-47b1-8053-7a72c9d505e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3e09f760d3ab33d7ad179a2600effd82f1c95e2b1d983774cf921bb78c2939b8","name":"Marcus Mac","registered_at":"2026-06-20T14:34:13Z","symbol":"NIM1632545","token_address":"0xe70dad26eccf2168d0b46dac6944bea1267925c2","type":"artist","uuid":"b54423d4-0e00-47b1-8053-7a72c9d505e0"}
album: Ashy Knuckles
  type: MusicAlbum
  date published: 2023-02-21
album: Salute You
  type: MusicAlbum
  date published: 2023-07-07
album: Do it all for you
  type: MusicAlbum
  date published: 2023-08-15
  track: Do it all for you
    type: MusicRecording
    duration: PT1M37S
    duration ms: 97906
    explicit: false
    by artist: Marcus Mac
    in album: Do it all for you
      type: MusicAlbum
      date published: 2023-08-15
    isrc code: QZRP42317867
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:30:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb84b019741cf0db3dc5fa659b06f0c14c978cba67c8571ff6a2f2b9f54d8af30
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42317867
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0xb84b019741cf0db3dc5fa659b06f0c14c978cba67c8571ff6a2f2b9f54d8af30. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZRP42317867.
      date published: 2026-07-04T14:03:39Z
    audio: Do it all for you
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.957
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.702
      additional property: Energy
        type: PropertyValue
        value: 0.645
      additional property: Speechiness
        type: PropertyValue
        value: 0.157
      additional property: Acousticness
        type: PropertyValue
        value: 0.054
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.285
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.393
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.331
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Run up a bag
  type: MusicAlbum
  date published: 2024-03-21
album: Come Around
  type: MusicAlbum
  date published: 2024-09-02
  track: Come Around
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145528
    explicit: false
    by artist: Marcus Mac
    in album: Come Around
      type: MusicAlbum
      date published: 2024-09-02
    isrc code: QZTBD2403112
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:49:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf63bb66d744d6e8f01509d5fe1a981357d50ecd0256990ccf2416d7c1614a180
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958654
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958654
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBD2403112
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:55:30Z
    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 0xf63bb66d744d6e8f01509d5fe1a981357d50ecd0256990ccf2416d7c1614a180. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZTBD2403112.
      date published: 2026-07-19T03:55:30Z
    audio: Come Around
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.931
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.387
      additional property: Energy
        type: PropertyValue
        value: 0.393
      additional property: Speechiness
        type: PropertyValue
        value: 0.187
      additional property: Acousticness
        type: PropertyValue
        value: 0.136
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Quarter Pound
album: Didn't Wanna Tell You Like That

Instrumentalness
type: PropertyValue
value: 0.194

Liveness
type: PropertyValue
value: 0.148

Valence (Positivity)
type: PropertyValue
value: 0.153

Loudness (dB)
type: PropertyValue
value: -13.258

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Minor

Quarter Pound
type: MusicAlbum
date published: 2024-09-02

Didn't Wanna Tell You Like That
type: MusicAlbum
date published: 2025-10-06