Jarra
type: MusicGroup
description: Jarra may refer to Jarra Central, one of the six districts of the Lower River Division of the Gambia Jarra East, one of the six districts of the Lower River Division of the Gambia Jarra West, one o
popularity: 2
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9af236da50115279f58b7880c350a73aad63fd7df3f496da8d35d58f1e07be20
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c169a58-f521-4ea2-9e05-906238689ec7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c169a58-f521-4ea2-9e05-906238689ec7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c169a58-f521-4ea2-9e05-906238689ec7
additional property: OTSTimestamp
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  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af236da50115279f58b7880c350a73aad63fd7df3f496da8d35d58f1e07be20. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c169a58-f521-4ea2-9e05-906238689ec7.json and https://artists.proofprofile.net/proofs/artist/4c169a58-f521-4ea2-9e05-906238689ec7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Bikelife
  type: MusicAlbum
  date published: 2019-10-04
album: Rennen
  type: MusicAlbum
  date published: 2020-01-24
album: Euros
  type: MusicAlbum
  date published: 2020-05-06
album: Snake
  type: MusicAlbum
  date published: 2020-10-29
album: Gilera
  type: MusicAlbum
  date published: 2021-07-26
album: bikelife 2
  type: MusicAlbum
  date published: 2021-09-14
album: Jarra - Telephone
  type: MusicAlbum
  date published: 2023-11-01
album: JARRA (DIAMOND HAZE)
  type: MusicAlbum
  date published: 2024-05-04
album: NARCOTICA
  type: MusicAlbum
  date published: 2024-10-11
track: Concrete Barz #192.2
  type: MusicRecording
  duration: PT2M8S
  duration ms: 128626
  explicit: false
  by artist: Spbarz
  by artist: Jarra
  in album: Concrete Barz #192.2
    type: MusicAlbum
    date published: 2024-02-15
  popularity: 2
  genre: dutch-drill
  isrc code: QZDA82491711
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    value: registered
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82491711
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T16:07:24Z
  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 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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91940b253c9bada776cab167c2ec897a4afad17dbd3a7f85eb955e7814003ea9. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZDA82491711.
    date published: 2026-07-31T16:07:24Z
  audio: Concrete Barz #192.2
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.891
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.226
    additional property: Acousticness
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      value: 0.073
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.251
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.604
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.98
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor