Jazz Brunch Café
type: MusicGroup
popularity: 12
followers: 49
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additional property: OTSVerifyInstructions
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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2961064d7e3fb95472eac4077147006fe0851718b98de62871ce79306093a00. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/632f2abc-5341-4a34-a2f3-54e8daea7075.json and https://artists.proofprofile.net/proofs/artist/632f2abc-5341-4a34-a2f3-54e8daea7075.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:23:11Z
  text: {"copyright_id":"0xe2961064d7e3fb95472eac4077147006fe0851718b98de62871ce79306093a00","name":"Jazz Brunch Café","registered_at":"2026-06-14T14:55:03Z","symbol":"NIM0488007","token_address":"0x486d2b42acbbf5d888787c621cb7055db6850bef","type":"artist","uuid":"632f2abc-5341-4a34-a2f3-54e8daea7075"}
album: Happy Jazz Songs for a Good Morning Breakfast
  type: MusicAlbum
  date published: 2019-03-15
  track: Classic Trumpet Jazz Song
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209236
    explicit: false
    by artist: Jazz Brunch Café
    in album: Happy Jazz Songs for a Good Morning Breakfast
      type: MusicAlbum
      date published: 2019-03-15
    isrc code: BGA472235574
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    additional property: OTSTimestamp
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      value: 2026-07-05T01:12:41Z
    additional property: OTSVerifyInstructions
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      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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1f0318c424c7737977c07b4b35630403e3fe7f447ae4caa89a96fc8d31b2ee. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BGA472235574 — a six-check JSON result.
      date published: 2026-07-05T01:12:41Z
    audio: Classic Trumpet Jazz Song
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.812
      additional property: Musical Key
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        value: 3
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.667
      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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        value: 0.956
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.337
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.482
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Jazz for Reading in Cozy Cafés
  type: MusicAlbum
  date published: 2020-02-15
album: Instrumental Jazz to Start Your Day
  type: MusicAlbum
  date published: 2021-05-29
album: Laidback Coffeehouse Jazz Background Songs
  type: MusicAlbum
  date published: 2022-08-25
album: Brunch Background Classic Jazz Tracks
  type: MusicAlbum
  date published: 2022-11-01