15 Seconds To Chicago
type: MusicGroup
popularity: 3
followers: 280
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c9b50266b78f95bf14cc38c710895c1415343c1e1d4ba1458beede751bfa66. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0fe54e2-91d6-4ef3-95cc-06c61b784f6c.json and https://artists.proofprofile.net/proofs/artist/b0fe54e2-91d6-4ef3-95cc-06c61b784f6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
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album: On Read
  type: MusicAlbum
  date published: 2021-10-06
album: Catfish
  type: MusicAlbum
  date published: 2021-10-24
album: Taco Tuesday
  type: MusicAlbum
  date published: 2021-11-02
  track: Shawty Wanna Fuck
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    duration: PT2M17S
    duration ms: 137404
    explicit: true
    by artist: 15 Seconds To Chicago
    in album: Taco Tuesday
      type: MusicAlbum
      date published: 2021-11-02
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    additional property: OTSTimestamp
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9fed6754857a7ad008dfe6e6226bd453e130bde8e936c403af032052867050. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2197249.
      date published: 2026-07-05T01:12:41Z
    audio: Shawty Wanna Fuck
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 84.979
      additional property: Musical Key
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        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.446
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: High School Shits
  type: MusicAlbum
  date published: 2021-11-05
album: 15 Seconds at Freddy's
  type: MusicAlbum
  date published: 2022-01-01
album: On Read 2
  type: MusicAlbum
  date published: 2022-01-03
album: Nacho Fries
  type: MusicAlbum
  date published: 2022-03-26
album: Nacho Fries are Back
  type: MusicAlbum
  date published: 2022-04-13
album: Rich Rabbids
  type: MusicAlbum
  date published: 2022-07-05
album: The Finale
  type: MusicAlbum
  date published: 2023-01-09
album: lost_files.
  type: MusicAlbum
  date published: 2023-02-08
album: 15 Seconds to Chicago Nightcore Greatest Hits
  type: MusicAlbum
  date published: 2024-10-01