California Ramblers
type: MusicGroup
genre: ragtime
popularity: 8
followers: 362
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e0bae1a-b935-4c16-868b-8c3214c67465.json
additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8cc9f25189ee2ae3ebb9ea96045fa6138a4f4ef34e882fc425bbb3b0f710c4. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e0bae1a-b935-4c16-868b-8c3214c67465.json and https://artists.proofprofile.net/proofs/artist/1e0bae1a-b935-4c16-868b-8c3214c67465.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xbf8cc9f25189ee2ae3ebb9ea96045fa6138a4f4ef34e882fc425bbb3b0f710c4","name":"California Ramblers","registered_at":"2026-06-16T00:03:21Z","symbol":"NIM0874173","token_address":"0x27d35391fbaae81731fc5e1012f39d4a3bdc8e65","type":"artist","uuid":"1e0bae1a-b935-4c16-868b-8c3214c67465"}
album: Magnolia
  type: MusicAlbum
  date published: 1920
album: Susquehanna Home
  type: MusicAlbum
  date published: 1924-10-01
album: Yes She Do (No She Don't)
  type: MusicAlbum
  date published: 1927
album: California Ramblers 1923-27 featuring Adrian Rollini
  type: MusicAlbum
  date published: 2009
album: California Ramblers - Shine
  type: MusicAlbum
  date published: 2013-11-18
album: Classic Jazz Gold Collection ( California Rambler 1923 - 27 )
  type: MusicAlbum
  date published: 2013-12-30
album: Riding Tunes
  type: MusicAlbum
  date published: 2014-04-23
album: Memorable Music
  type: MusicAlbum
  date published: 2015-10-18
album: Roaring Twenties
  type: MusicAlbum
  date published: 2020-10-29
  track: Yes She Do (No She Doesn't)
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163133
    explicit: false
    by artist: California Ramblers
    in album: Roaring Twenties
      type: MusicAlbum
      date published: 2020-10-29
    genre: ragtime
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUXN22094322
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:24:36Z
    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 0xb0d2e6ccd4390930b8ff1ee5a6f24dd5dac1c16fc5b35482b087aa8ab7f8d697. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:24:36Z), 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/AUXN22094322.
      date published: 2026-07-15T14:24:36Z
    audio: Yes She Do (No She Doesn't)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.685
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.724
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.008
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.457
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
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