DR Lakra
type: MusicGroup
description: Jerónimo López Ramírez (born 1972), known as Dr Lakra, is a Mexican artist and tattooist based in Oaxaca. He has shown work internationally in exhibitions including at Tate Modern and Barbican Centre
popularity: 4
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71d4fb25976e14942aa71ebec9c95039677e58cb29b9ba671dd00641c5f50421
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
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/4cc8feaf-1b6c-462e-9802-9460fe94422e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cc8feaf-1b6c-462e-9802-9460fe94422e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cc8feaf-1b6c-462e-9802-9460fe94422e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x71d4fb25976e14942aa71ebec9c95039677e58cb29b9ba671dd00641c5f50421","name":"DR Lakra","registered_at":"2026-06-16T16:24:29Z","symbol":"NIM1108387","token_address":"0x780398b40657b64451102e5334aa2d717e3b2b41","type":"artist","uuid":"4cc8feaf-1b6c-462e-9802-9460fe94422e"}
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 0x71d4fb25976e14942aa71ebec9c95039677e58cb29b9ba671dd00641c5f50421. 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/4cc8feaf-1b6c-462e-9802-9460fe94422e.json and https://artists.proofprofile.net/proofs/artist/4cc8feaf-1b6c-462e-9802-9460fe94422e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x71d4fb25976e14942aa71ebec9c95039677e58cb29b9ba671dd00641c5f50421","name":"DR Lakra","registered_at":"2026-06-16T16:24:29Z","symbol":"NIM1108387","token_address":"0x780398b40657b64451102e5334aa2d717e3b2b41","type":"artist","uuid":"4cc8feaf-1b6c-462e-9802-9460fe94422e"}
album: Nayka - Revenge Of Love
  type: MusicAlbum
  date published: 2024-12-23
  track: Pyar Kar Siti
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217996
    explicit: false
    by artist: DR Lakra
    in album: Nayka - Revenge Of Love
      type: MusicAlbum
      date published: 2024-12-23
    isrc code: INH512025512
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T15:29:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c2993892402f143198a3cb675f0cc8e47ab636e1af45db77e838d4c8c0cf9a7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INH512025512
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x7c2993892402f143198a3cb675f0cc8e47ab636e1af45db77e838d4c8c0cf9a7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INH512025512.
      date published: 2026-07-03T19:59:51Z
    audio: Pyar Kar Siti
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.348
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.645
      additional property: Energy
        type: PropertyValue
        value: 0.844
      additional property: Speechiness
        type: PropertyValue
        value: 0.165
      additional property: Acousticness
        type: PropertyValue
        value: 0.336
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.435
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.616
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.24
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor