Popoff & His Bootleggers
type: MusicGroup
genre: boogie
genre: boogie-woogie
genre: honky tonk
genre: ragtime
popularity: 7
followers: 61
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additional property: CopyrightChainExplorerURL
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additional property: OTSTimestamp
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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 0xfd8107f88fec296c708ac6e9f7b8cd45b56e9001c65667e110f284053d280c4e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a58e5918-eb90-4787-aa5a-9daab32f7681.json and https://artists.proofprofile.net/proofs/artist/a58e5918-eb90-4787-aa5a-9daab32f7681.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xfd8107f88fec296c708ac6e9f7b8cd45b56e9001c65667e110f284053d280c4e","name":"Popoff & His Bootleggers","registered_at":"2026-06-20T07:25:30Z","symbol":"NIM1553987","token_address":"0x26dda933ad0adb0dd47aadf6e83cab1696c5023d","type":"artist","uuid":"a58e5918-eb90-4787-aa5a-9daab32f7681"}
album: Honky-Tonk Piano
  type: MusicAlbum
  date published: 2008-07-30
  track: A Swinging Guy
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185906
    explicit: false
    by artist: Popoff & His Bootleggers
    in album: Honky-Tonk Piano
      type: MusicAlbum
      date published: 2008-07-30
    genre: boogie
    genre: boogie-woogie
    genre: honky tonk
    genre: ragtime
    isrc code: FRZ537500039
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    additional property: CopyrightStatus
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:01:25Z
    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 0x4fb76332bb3fce5bbbd82ce6cc68c8380270df1b1365b644744244a65d87c095. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/FRZ537500039.
      date published: 2026-07-12T22:01:25Z
    audio: A Swinging Guy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.693
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.609
      additional property: Energy
        type: PropertyValue
        value: 0.304
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.461
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.247
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.731
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.206
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major