Bert Shefter
type: MusicGroup
description: Bert Shefter (May 15, 1902 – June 29, 1999) was a Russian-born film composer who worked primarily in America. Biography He was born in Poltava, Russian Empire (now Ukraine.) After emigrating to the U
popularity: 3
followers: 115
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/61606542-1d02-4258-a68a-28f717e1d148.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x535b89d3e8078b590cf0e14051ff1c01ac30ebe352e73a13964fdc6e76456309","name":"Bert Shefter","registered_at":"2026-06-16T23:36:48Z","symbol":"NIM1211520","token_address":"0x654b475161210552b8667c364b86e2300bc9ff9e","type":"artist","uuid":"61606542-1d02-4258-a68a-28f717e1d148"}
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 0x535b89d3e8078b590cf0e14051ff1c01ac30ebe352e73a13964fdc6e76456309. 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/61606542-1d02-4258-a68a-28f717e1d148.json and https://artists.proofprofile.net/proofs/artist/61606542-1d02-4258-a68a-28f717e1d148.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x535b89d3e8078b590cf0e14051ff1c01ac30ebe352e73a13964fdc6e76456309","name":"Bert Shefter","registered_at":"2026-06-16T23:36:48Z","symbol":"NIM1211520","token_address":"0x654b475161210552b8667c364b86e2300bc9ff9e","type":"artist","uuid":"61606542-1d02-4258-a68a-28f717e1d148"}
album: The Big Circus (Le Cirque Fantastique) [Original Movie Soundtrack]
  type: MusicAlbum
  date published: 1959
  track: High Flying
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205814
    explicit: false
    by artist: Bert Shefter
    in album: The Big Circus (Le Cirque Fantastique) [Original Movie Soundtrack]
      type: MusicAlbum
      date published: 1959
    isrc code: CAC901734412
    additional property: CopyrightID
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      value: registered
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-07T18:50:38Z
    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 0x403adefdbf921107eb24ef262116fe03f152ec9d9aebae2b62f41504b0ba447d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CAC901734412.
      date published: 2026-07-07T18:50:38Z
    audio: High Flying
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.404
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
        value: 0.21
      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
        value: 0.311
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.098
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.194
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Russ Meyer's Faster, Pussycat! Kill! Kill! (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1965-08-14
album: Russ Meyer's Faster, Pussycat! Kill! Kill! (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 1995
album: Kronos (An Original Soundtrack Recording)
  type: MusicAlbum
  date published: 2017-11-14