Ragtime Music Unlimited
type: MusicGroup
genre: orchestra
genre: ragtime
popularity: 14
followers: 1879
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89c9fda0608386e1ae280fd6709fd437811b2bc9ffb083dd163f8366df86af91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953754
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953754
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af54d5a5-cef2-4edf-8c72-cbd4971a259c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af54d5a5-cef2-4edf-8c72-cbd4971a259c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af54d5a5-cef2-4edf-8c72-cbd4971a259c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:45:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x89c9fda0608386e1ae280fd6709fd437811b2bc9ffb083dd163f8366df86af91","name":"Ragtime Music Unlimited","registered_at":"2026-06-14T22:57:26Z","symbol":"NIM0603046","token_address":"0x686d0d361ee5144a9fa12367a18c937ba27eb4af","type":"artist","uuid":"af54d5a5-cef2-4edf-8c72-cbd4971a259c"}
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 0x89c9fda0608386e1ae280fd6709fd437811b2bc9ffb083dd163f8366df86af91. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af54d5a5-cef2-4edf-8c72-cbd4971a259c.json and https://artists.proofprofile.net/proofs/artist/af54d5a5-cef2-4edf-8c72-cbd4971a259c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x89c9fda0608386e1ae280fd6709fd437811b2bc9ffb083dd163f8366df86af91","name":"Ragtime Music Unlimited","registered_at":"2026-06-14T22:57:26Z","symbol":"NIM0603046","token_address":"0x686d0d361ee5144a9fa12367a18c937ba27eb4af","type":"artist","uuid":"af54d5a5-cef2-4edf-8c72-cbd4971a259c"}
album: Ragtime Classics (Joseph Lamb's Ragtime Masterpieces)
  type: MusicAlbum
  date published: 2011-04-26
album: Ragtime Classics (Scott Joplin's Ragtime Masterpieces)
  type: MusicAlbum
  date published: 2011-04-26
album: Ragtime Classics (James Scott's Ragtime Masterpieces)
  type: MusicAlbum
  date published: 2011-04-26
album: 50 Ragtime Piano Classics (Best Of Scott Joplin, Joseph Lamb & James Scott)
  type: MusicAlbum
  date published: 2011-05-03
  track: Maple Leaf Rag (Scott Joplin)
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175693
    explicit: false
    by artist: Ragtime Music Unlimited
    in album: 50 Ragtime Piano Classics (Best Of Scott Joplin, Joseph Lamb & James Scott)
      type: MusicAlbum
      date published: 2011-05-03
    genre: orchestra
    genre: ragtime
    isrc code: USA371246592
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T01:36:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x088fcd604811395960d7dbea1f4f0bdb8f0e4ae62a87e90240610ff5f31498fc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371246592
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T03:34:53Z
    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 0x088fcd604811395960d7dbea1f4f0bdb8f0e4ae62a87e90240610ff5f31498fc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA371246592.
      date published: 2026-07-18T03:34:53Z
    audio: Maple Leaf Rag (Scott Joplin)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.997
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.66
      additional property: Energy
        type: PropertyValue
        value: 0.437
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.955
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.825
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.684
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.589
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ultimate Ragtime Collection (The Greatest Ragtime Music)
  type: MusicAlbum
  date published: 2011-05-03
album: The Ragtime Dixieland Playlist (Old Remastered Jazz Music Classics)
  type: MusicAlbum
  date published: 2014-03-04
album: The Ragtime Dixieland Playlist, Vol. 1 (25 Old Remastered Jazz Music Classics)
  type: MusicAlbum
  date published: 2014-05-29
album: The Ragtime Dixieland Playlist, Vol. 2 (25 Old Remastered Jazz Music Classics)
  type: MusicAlbum
  date published: 2014-06-13
album: The Entertainer
  type: MusicAlbum
  date published: 2025-01-17