Marx Cassity
type: MusicGroup
popularity: 5
followers: 559
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb9a14f8647cefd9bbb86492c5170959b2355af552216b0dd3076c70e63a8596
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0985c2d-7b92-4158-8a8c-a0fb5c3b4505.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0985c2d-7b92-4158-8a8c-a0fb5c3b4505.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0985c2d-7b92-4158-8a8c-a0fb5c3b4505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb9a14f8647cefd9bbb86492c5170959b2355af552216b0dd3076c70e63a8596","name":"Marx Cassity","registered_at":"2026-06-21T06:51:17Z","symbol":"NIM1853745","token_address":"0xed5b956a9f20bc2f6e763cea3b0d1b58e84abae2","type":"artist","uuid":"e0985c2d-7b92-4158-8a8c-a0fb5c3b4505"}
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 0xeb9a14f8647cefd9bbb86492c5170959b2355af552216b0dd3076c70e63a8596. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0985c2d-7b92-4158-8a8c-a0fb5c3b4505.json and https://artists.proofprofile.net/proofs/artist/e0985c2d-7b92-4158-8a8c-a0fb5c3b4505.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xeb9a14f8647cefd9bbb86492c5170959b2355af552216b0dd3076c70e63a8596","name":"Marx Cassity","registered_at":"2026-06-21T06:51:17Z","symbol":"NIM1853745","token_address":"0xed5b956a9f20bc2f6e763cea3b0d1b58e84abae2","type":"artist","uuid":"e0985c2d-7b92-4158-8a8c-a0fb5c3b4505"}
album: How Long
  type: MusicAlbum
  date published: 2023-08-18
album: Somewhere
  type: MusicAlbum
  date published: 2023-10-09
album: The Dawn
  type: MusicAlbum
  date published: 2023-10-20
album: 2Sacred
  type: MusicAlbum
  date published: 2023-11-05
  track: Somewhere
    type: MusicRecording
    duration: PT4M54S
    duration ms: 294386
    explicit: false
    by artist: Marx Cassity
    in album: 2Sacred
      type: MusicAlbum
      date published: 2023-11-05
    isrc code: USL4Q2387235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T13:22:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x363c93e8873986b60ded2db3bb4784165fb699008ecde3b6814850c317f317d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959013
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959013
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2387235
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:39:11Z
    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 0x363c93e8873986b60ded2db3bb4784165fb699008ecde3b6814850c317f317d4. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/USL4Q2387235 — a six-check JSON result.
      date published: 2026-07-21T13:39:11Z
    audio: Somewhere
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.011
      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: 0.763
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.513
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.188
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.21
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.25
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor