Mar Porter
type: MusicGroup
popularity: 2
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80078e5ae7bf0b738c8ddeedec604f4d4587ef31d7db4235eb79b23e60fad2f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5ed0995-ec76-4f6b-9682-126b61c857c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5ed0995-ec76-4f6b-9682-126b61c857c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5ed0995-ec76-4f6b-9682-126b61c857c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x80078e5ae7bf0b738c8ddeedec604f4d4587ef31d7db4235eb79b23e60fad2f7","name":"Mar Porter","registered_at":"2026-06-20T15:16:31Z","symbol":"NIM1638666","token_address":"0xe8eb37b2f6920312306cbab3c56f0aa616c39c79","type":"artist","uuid":"b5ed0995-ec76-4f6b-9682-126b61c857c0"}
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 0x80078e5ae7bf0b738c8ddeedec604f4d4587ef31d7db4235eb79b23e60fad2f7. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5ed0995-ec76-4f6b-9682-126b61c857c0.json and https://artists.proofprofile.net/proofs/artist/b5ed0995-ec76-4f6b-9682-126b61c857c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x80078e5ae7bf0b738c8ddeedec604f4d4587ef31d7db4235eb79b23e60fad2f7","name":"Mar Porter","registered_at":"2026-06-20T15:16:31Z","symbol":"NIM1638666","token_address":"0xe8eb37b2f6920312306cbab3c56f0aa616c39c79","type":"artist","uuid":"b5ed0995-ec76-4f6b-9682-126b61c857c0"}
album: Bounce Back
  type: MusicAlbum
  date published: 2018-09-25
album: Devil After Me
  type: MusicAlbum
  date published: 2018-12-05
album: Whenever You Need Me (Wynm)
  type: MusicAlbum
  date published: 2019-03-13
album: Way Too Gone
  type: MusicAlbum
  date published: 2019-11-15
album: Let's Go
  type: MusicAlbum
  date published: 2019-11-15
album: Trappin' No Slackin'
  type: MusicAlbum
  date published: 2019-11-18
album: In the Clouds
  type: MusicAlbum
  date published: 2020-03-07
album: WHAAT!
  type: MusicAlbum
  date published: 2021-08-15
  track: You & Me
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134321
    explicit: true
    by artist: Mar Porter
    in album: WHAAT!
      type: MusicAlbum
      date published: 2021-08-15
    isrc code: QZK6J2163687
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:37:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xda0cfb58ca9285e5679f4791ad320caaeabdbee054ca5505ce2c897beeb74821
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959065
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959065
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2163687
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T00:40:32Z
    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 0xda0cfb58ca9285e5679f4791ad320caaeabdbee054ca5505ce2c897beeb74821. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:40:32Z), 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/QZK6J2163687.
      date published: 2026-07-22T00:40:32Z
    audio: You & Me
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.01
      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: 0.658
      additional property: Energy
        type: PropertyValue
        value: 0.608
      additional property: Speechiness
        type: PropertyValue
        value: 0.088
      additional property: Acousticness
        type: PropertyValue
        value: 0.037
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.057
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.339
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.157
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: WAR
  type: MusicAlbum
  date published: 2021-10-31
album: In The Clouds 2
  type: MusicAlbum
  date published: 2022-03-07
album: TP4E
  type: MusicAlbum
  date published: 2024-02-24
album: Porter, Vol. 1
  type: MusicAlbum
  date published: 2024-11-22
album: Porter Station
  type: MusicAlbum
  date published: 2025-04-16