Jonas Elfqvist
type: MusicGroup
popularity: 2
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba8dfad38fc917aa3ad2e6661856f533cf29b9405d57cbcf5b9ac8132f05d8c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67eaca00-b90a-4a05-b277-8faedee7f2ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67eaca00-b90a-4a05-b277-8faedee7f2ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67eaca00-b90a-4a05-b277-8faedee7f2ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba8dfad38fc917aa3ad2e6661856f533cf29b9405d57cbcf5b9ac8132f05d8c4","name":"Jonas Elfqvist","registered_at":"2026-06-17T01:53:11Z","symbol":"NIM1244060","token_address":"0xf1892854df0bb06943ef153f45aa434cebe2dbaf","type":"artist","uuid":"67eaca00-b90a-4a05-b277-8faedee7f2ca"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8dfad38fc917aa3ad2e6661856f533cf29b9405d57cbcf5b9ac8132f05d8c4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67eaca00-b90a-4a05-b277-8faedee7f2ca.json and https://artists.proofprofile.net/proofs/artist/67eaca00-b90a-4a05-b277-8faedee7f2ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xba8dfad38fc917aa3ad2e6661856f533cf29b9405d57cbcf5b9ac8132f05d8c4","name":"Jonas Elfqvist","registered_at":"2026-06-17T01:53:11Z","symbol":"NIM1244060","token_address":"0xf1892854df0bb06943ef153f45aa434cebe2dbaf","type":"artist","uuid":"67eaca00-b90a-4a05-b277-8faedee7f2ca"}
album: Blank Account
  type: MusicAlbum
  date published: 2024-06-14
  track: Blank Account
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224397
    explicit: false
    by artist: Jonas Elfqvist
    in album: Blank Account
      type: MusicAlbum
      date published: 2024-06-14
    isrc code: GBMJG2415933
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:09:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa88f65ab3d36d141977dffc1a1d740788822e903ff98e2519a7b2c6870e9649e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG2415933
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:06:07Z
    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 0xa88f65ab3d36d141977dffc1a1d740788822e903ff98e2519a7b2c6870e9649e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:06:07Z), 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/GBMJG2415933.
      date published: 2026-07-21T04:06:07Z
    audio: Blank Account
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.995
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.59
      additional property: Energy
        type: PropertyValue
        value: 0.835
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.015
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.884
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.817
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major