Marcus Frog
type: MusicGroup
genre: avant-garde
popularity: 6
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41a0a14e9b895bd04d3cf3874a706b87311e521b8ffa8d7ea9fdc942b833b044
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6eea5a45-9970-4c88-ab58-1ace6d7c9d4e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6eea5a45-9970-4c88-ab58-1ace6d7c9d4e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6eea5a45-9970-4c88-ab58-1ace6d7c9d4e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41a0a14e9b895bd04d3cf3874a706b87311e521b8ffa8d7ea9fdc942b833b044","name":"Marcus Frog","registered_at":"2026-06-17T04:17:04Z","symbol":"NIM1278408","token_address":"0x9a3b4244d2d6507af27c5870b5779f70265e821b","type":"artist","uuid":"6eea5a45-9970-4c88-ab58-1ace6d7c9d4e"}
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 0x41a0a14e9b895bd04d3cf3874a706b87311e521b8ffa8d7ea9fdc942b833b044. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6eea5a45-9970-4c88-ab58-1ace6d7c9d4e.json and https://artists.proofprofile.net/proofs/artist/6eea5a45-9970-4c88-ab58-1ace6d7c9d4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x41a0a14e9b895bd04d3cf3874a706b87311e521b8ffa8d7ea9fdc942b833b044","name":"Marcus Frog","registered_at":"2026-06-17T04:17:04Z","symbol":"NIM1278408","token_address":"0x9a3b4244d2d6507af27c5870b5779f70265e821b","type":"artist","uuid":"6eea5a45-9970-4c88-ab58-1ace6d7c9d4e"}
album: We Make Our Own
  type: MusicAlbum
  date published: 2023-04-25
  track: The Whiz Kid
    type: MusicRecording
    duration: PT0M56S
    duration ms: 56764
    explicit: false
    by artist: Marcus Frog
    in album: We Make Our Own
      type: MusicAlbum
      date published: 2023-04-25
    genre: avant-garde
    isrc code: USJ3V2318913
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:06:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb20cb1bb904917389084fdb4631edf981b1d399fb8397508f3ca14d32d624b9b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V2318913
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T05:09:35Z
    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 0xb20cb1bb904917389084fdb4631edf981b1d399fb8397508f3ca14d32d624b9b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:09:35Z), 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/USJ3V2318913.
      date published: 2026-07-21T05:09:35Z
    audio: The Whiz Kid
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 63.85
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.374
      additional property: Energy
        type: PropertyValue
        value: 0.03
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.946
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.866
      additional property: Liveness
        type: PropertyValue
        value: 0.202
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.035
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.93
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor