MC Mr. Napkins
type: MusicGroup
genre: comedy
genre: nerdcore
popularity: 17
followers: 1562
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab82615e8049011d9fc52479d8193dc578d7f390a78b568f1ece6dbe47aeff07
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953743
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953743
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a23450ac-b057-4a4b-999d-1856f19c2a5e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a23450ac-b057-4a4b-999d-1856f19c2a5e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a23450ac-b057-4a4b-999d-1856f19c2a5e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:52:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab82615e8049011d9fc52479d8193dc578d7f390a78b568f1ece6dbe47aeff07","name":"MC Mr. Napkins","registered_at":"2026-06-14T21:38:24Z","symbol":"NIM0584174","token_address":"0x5b9aae1839bdb83b87f0cbf86b1b15009ab6c44e","type":"artist","uuid":"a23450ac-b057-4a4b-999d-1856f19c2a5e"}
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 0xab82615e8049011d9fc52479d8193dc578d7f390a78b568f1ece6dbe47aeff07. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a23450ac-b057-4a4b-999d-1856f19c2a5e.json and https://artists.proofprofile.net/proofs/artist/a23450ac-b057-4a4b-999d-1856f19c2a5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:52:01Z
  text: {"copyright_id":"0xab82615e8049011d9fc52479d8193dc578d7f390a78b568f1ece6dbe47aeff07","name":"MC Mr. Napkins","registered_at":"2026-06-14T21:38:24Z","symbol":"NIM0584174","token_address":"0x5b9aae1839bdb83b87f0cbf86b1b15009ab6c44e","type":"artist","uuid":"a23450ac-b057-4a4b-999d-1856f19c2a5e"}
album: The Album
  type: MusicAlbum
  date published: 2010-11-30
album: MC Mr. Napkins: The Album
  type: MusicAlbum
  date published: 2010-11-30
  track: The Aggressive Bee
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146640
    explicit: false
    by artist: MC Mr. Napkins
    in album: MC Mr. Napkins: The Album
      type: MusicAlbum
      date published: 2010-11-30
    genre: comedy
    genre: nerdcore
    isrc code: US85P1011203
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T05:07:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6f432257ff29e0f3654cfce4453f93ea620574a478bcafa66dbaf2e011bfc5a9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US85P1011203
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x6f432257ff29e0f3654cfce4453f93ea620574a478bcafa66dbaf2e011bfc5a9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US85P1011203.
      date published: 2026-07-03T09:04:44Z
    audio: The Aggressive Bee
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.998
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.852
      additional property: Energy
        type: PropertyValue
        value: 0.762
      additional property: Speechiness
        type: PropertyValue
        value: 0.291
      additional property: Acousticness
        type: PropertyValue
        value: 0.029
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.832
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.494
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: MC Mr. Napkins: The Album
  type: MusicAlbum
  date published: 2010-11-30
album: Pro/con - Single
  type: MusicAlbum
  date published: 2012-02-01
album: Wu Beatles - Single
  type: MusicAlbum
  date published: 2012-03-26
album: F-Bombs
  type: MusicAlbum
  date published: 2012-07-29