l o k a
type: MusicGroup
genre: lo-fi
genre: lo-fi beats
popularity: 2
followers: 436
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81413ea3e2ea84167ddc936a811b39847076bc5062a32f6c908817c6d86f21a0
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/71902a7d-19e5-4ef1-b7dc-905b80a0b889.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71902a7d-19e5-4ef1-b7dc-905b80a0b889.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/71902a7d-19e5-4ef1-b7dc-905b80a0b889
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81413ea3e2ea84167ddc936a811b39847076bc5062a32f6c908817c6d86f21a0","name":"l o k a","registered_at":"2026-06-17T05:10:24Z","symbol":"NIM1291141","token_address":"0x9b20e155f6a921b0101a61678aeca0327cc4dbf6","type":"artist","uuid":"71902a7d-19e5-4ef1-b7dc-905b80a0b889"}
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 0x81413ea3e2ea84167ddc936a811b39847076bc5062a32f6c908817c6d86f21a0. 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/71902a7d-19e5-4ef1-b7dc-905b80a0b889.json and https://artists.proofprofile.net/proofs/artist/71902a7d-19e5-4ef1-b7dc-905b80a0b889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x81413ea3e2ea84167ddc936a811b39847076bc5062a32f6c908817c6d86f21a0","name":"l o k a","registered_at":"2026-06-17T05:10:24Z","symbol":"NIM1291141","token_address":"0x9b20e155f6a921b0101a61678aeca0327cc4dbf6","type":"artist","uuid":"71902a7d-19e5-4ef1-b7dc-905b80a0b889"}
album: raw loops
  type: MusicAlbum
  date published: 2016-11-27
album: raw loops ep
  type: MusicAlbum
  date published: 2016-11-28
album: raw loops ep
  type: MusicAlbum
  date published: 2016-11-28
album: study break tape
  type: MusicAlbum
  date published: 2016-12-30
album: study break tape
  type: MusicAlbum
  date published: 2016-12-31
album: study break tape
  type: MusicAlbum
  date published: 2016-12-31
track: Sapphire
  type: MusicRecording
  duration: PT1M22S
  duration ms: 82791
  explicit: false
  by artist: l o k a
  in album: Earwax Headspace
    type: MusicAlbum
    date published: 2019-12-28
  isrc code: TCAEO1954031
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T05:37:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa4f809574cf86ef35e51d31c9c80e44b9404ba354d6bbc022f381bb7cf28241b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960354
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960354
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEO1954031
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:48:18Z
  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 0xa4f809574cf86ef35e51d31c9c80e44b9404ba354d6bbc022f381bb7cf28241b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCAEO1954031.
    date published: 2026-07-31T05:48:18Z
  audio: Sapphire
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.942
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.816
    additional property: Energy
      type: PropertyValue
      value: 0.49
    additional property: Speechiness
      type: PropertyValue
      value: 0.08
    additional property: Acousticness
      type: PropertyValue
      value: 0.366
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.807
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.576
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.468
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor