Marty Crown
type: MusicGroup
popularity: 6
followers: 4647
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26559a5859af8698b990fbb9ba46538c10c4c6fe12065f82887f1cbc45381870
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953973
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953973
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae030d6-bec0-419a-84b8-6965fcb979d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae030d6-bec0-419a-84b8-6965fcb979d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ae030d6-bec0-419a-84b8-6965fcb979d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:37:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26559a5859af8698b990fbb9ba46538c10c4c6fe12065f82887f1cbc45381870","name":"Marty Crown","registered_at":"2026-06-16T04:34:09Z","symbol":"NIM0938851","token_address":"0xbda7e74b0fe40e5b5acfb102e158144d47773941","type":"artist","uuid":"2ae030d6-bec0-419a-84b8-6965fcb979d5"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26559a5859af8698b990fbb9ba46538c10c4c6fe12065f82887f1cbc45381870. Chain 2 (Bitcoin): anchored in block 953973 (2026-06-16T16:37:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ae030d6-bec0-419a-84b8-6965fcb979d5.json and https://artists.proofprofile.net/proofs/artist/2ae030d6-bec0-419a-84b8-6965fcb979d5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T16:37:07Z
  text: {"copyright_id":"0x26559a5859af8698b990fbb9ba46538c10c4c6fe12065f82887f1cbc45381870","name":"Marty Crown","registered_at":"2026-06-16T04:34:09Z","symbol":"NIM0938851","token_address":"0xbda7e74b0fe40e5b5acfb102e158144d47773941","type":"artist","uuid":"2ae030d6-bec0-419a-84b8-6965fcb979d5"}
album: Hologram
  type: MusicAlbum
  date published: 2017-03-03
album: Nomad Lullaby
  type: MusicAlbum
  date published: 2017-08-08
album: Queen of Sadness
  type: MusicAlbum
  date published: 2020-11-20
album: Queen of Sadness
  type: MusicAlbum
  date published: 2020-11-20
album: Kisses (Happy Endings)
  type: MusicAlbum
  date published: 2021-02-19
album: Kisses (Happy Endings)
  type: MusicAlbum
  date published: 2021-02-19
album: I Need You Right Now
  type: MusicAlbum
  date published: 2021-05-07
album: I Need You Right Now
  type: MusicAlbum
  date published: 2021-05-07
album: Stay
  type: MusicAlbum
  date published: 2021-06-11
album: Stay
  type: MusicAlbum
  date published: 2021-06-11
album: Queen Of Sadness (Dumitresku Remix)
  type: MusicAlbum
  date published: 2021-08-06
album: Mom's Pocket
  type: MusicAlbum
  date published: 2021-11-05
album: Mom's Pocket
  type: MusicAlbum
  date published: 2021-11-05
album: We Are Here (Mark Playmore Remix)
  type: MusicAlbum
  date published: 2021-12-21
album: Passion (Mark Playmore Remix)
  type: MusicAlbum
  date published: 2022-02-25
album: Gemstore
  type: MusicAlbum
  date published: 2022-11-11
  track: Queen of Sadness
    type: MusicRecording
    duration: PT4M37S
    duration ms: 277853
    explicit: false
    by artist: Marty Crown
    in album: Gemstore
      type: MusicAlbum
      date published: 2022-11-11
    isrc code: QZKVP2000001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:20:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d1f766e78917d6303cd52b25f4f648b5ad171d01626b7d9f7e0d478fa1a5a7f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958335
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958335
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKVP2000001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T22:37:47Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1f766e78917d6303cd52b25f4f648b5ad171d01626b7d9f7e0d478fa1a5a7f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKVP2000001 — a six-check JSON result.
      date published: 2026-07-16T22:37:47Z
    audio: Queen of Sadness
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.023
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.718
      additional property: Energy
        type: PropertyValue
        value: 0.505
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.283
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.02
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.21
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.638
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Spiritual Awakening
  type: MusicAlbum
  date published: 2023-10-27
album: Honey Honey
  type: MusicAlbum
  date published: 2024-08-22