The University of California Marching Band
type: MusicGroup
popularity: 8
followers: 520
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b5b384b3755d777ed963c8a52cd899e599012e58a1765c31b3d289756620b8. Chain 2 (Bitcoin): anchored in block 953941 (2026-06-16T11:51:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2141ba19-c856-4599-95ca-e649e40dd952.json and https://artists.proofprofile.net/proofs/artist/2141ba19-c856-4599-95ca-e649e40dd952.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:51:19Z
  text: {"copyright_id":"0xd4b5b384b3755d777ed963c8a52cd899e599012e58a1765c31b3d289756620b8","name":"The University of California Marching Band","registered_at":"2026-06-16T01:04:56Z","symbol":"NIM0888865","token_address":"0x50ca52ab3255e07f103a68a584c68363b2a36418","type":"artist","uuid":"2141ba19-c856-4599-95ca-e649e40dd952"}
album: Gameday Faves: California Bears Classics
  type: MusicAlbum
  date published: 2013-06-30
  track: Fight for California
    type: MusicRecording
    duration: PT1M21S
    duration ms: 81013
    explicit: false
    by artist: The University of California Marching Band
    in album: Gameday Faves: California Bears Classics
      type: MusicAlbum
      date published: 2013-06-30
    isrc code: QMFME1399725
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    additional property: OTSVerificationAPI
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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
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d5e07968fd59f0fbec8b9985fee7069872f7cdf101322626e4c0d98e1f6292. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMFME1399725.
      date published: 2026-07-04T14:03:39Z
    audio: Fight for California
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.608
      additional property: Musical Key
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        value: 10
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
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        value: 4
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
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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
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.495
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.832
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major