Ocha la Rocha
type: MusicGroup
description: Ocha la Rocha is an American alternative rock band based in Atlanta, Georgia, United States. In 2005, their first album, Ocha Lives, was recorded and highlights the band's original rock-country sound.
popularity: 7
followers: 359
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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 0x13d58ef460b2e3e88bd2fdee33f11a3a1098e0fc73f0c4ac41e21b42dcd9e1a9. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f679d9cf-4176-4128-bf31-61a45d4c4a24.json and https://artists.proofprofile.net/proofs/artist/f679d9cf-4176-4128-bf31-61a45d4c4a24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
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album: Ocha Lives (Deluxe Edition)
  type: MusicAlbum
  date published: 2010-02-16
  track: Occam's Razor
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    by artist: Ocha la Rocha
    in album: Ocha Lives (Deluxe Edition)
      type: MusicAlbum
      date published: 2010-02-16
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-19T06:43:29Z
    audio: Occam's Razor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.091
      additional property: Musical Key
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        value: 4
      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: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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        value: 0.083
      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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        value: -3.774
      additional property: Key Name
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        value: E
      additional property: Mode Name
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album: Stealing Time
  type: MusicAlbum
  date published: 2010-02-23
album: Heavy / Tunnels & Lines Digital 7"
  type: MusicAlbum
  date published: 2012-01-14
album: Ocha Scores
  type: MusicAlbum
  date published: 2013-08-06
  track: Heavy
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209802
    explicit: false
    by artist: Ocha la Rocha
    in album: Ocha Scores
      type: MusicAlbum
      date published: 2013-08-06
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    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-05T04:47:21Z
    audio: Heavy
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Time Signature
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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
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
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value: 0

Liveness
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value: 0.085

Valence (Positivity)
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value: 0.425

Loudness (dB)
type: PropertyValue
value: -5.431

Key Name
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value: Eb

Mode Name
type: PropertyValue
value: Major