Lucas Maj
type: MusicGroup
genre: brazilian hip hop
popularity: 2
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5b434e883913fed250f1df0d852ad37bcb4ed77c6add24a3f590ba703177a75
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa47189c-461c-4620-b7c3-976801823216.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa47189c-461c-4620-b7c3-976801823216.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa47189c-461c-4620-b7c3-976801823216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd5b434e883913fed250f1df0d852ad37bcb4ed77c6add24a3f590ba703177a75","name":"Lucas Maj","registered_at":"2026-06-21T17:05:56Z","symbol":"NIM1983201","token_address":"0x8e4b2617c751aee0e43388c0bc57564186a22c41","type":"artist","uuid":"fa47189c-461c-4620-b7c3-976801823216"}
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 0xd5b434e883913fed250f1df0d852ad37bcb4ed77c6add24a3f590ba703177a75. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa47189c-461c-4620-b7c3-976801823216.json and https://artists.proofprofile.net/proofs/artist/fa47189c-461c-4620-b7c3-976801823216.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xd5b434e883913fed250f1df0d852ad37bcb4ed77c6add24a3f590ba703177a75","name":"Lucas Maj","registered_at":"2026-06-21T17:05:56Z","symbol":"NIM1983201","token_address":"0x8e4b2617c751aee0e43388c0bc57564186a22c41","type":"artist","uuid":"fa47189c-461c-4620-b7c3-976801823216"}
album: Melhor Que Ontem
  type: MusicAlbum
  date published: 2025-07-10
  track: Melhor Que Ontem
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169677
    explicit: false
    by artist: Lucas Maj
    in album: Melhor Que Ontem
      type: MusicAlbum
      date published: 2025-07-10
    genre: brazilian hip hop
    isrc code: QZNJW2546636
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:07:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd6055da638944ac7915948c39c96f0d3687691fd7dd985bcd835ccaacdafa7b6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958870
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958870
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2546636
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:05:34Z
    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 0xd6055da638944ac7915948c39c96f0d3687691fd7dd985bcd835ccaacdafa7b6. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:34Z), 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/QZNJW2546636.
      date published: 2026-07-20T14:05:34Z
    audio: Melhor Que Ontem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.053
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.547
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.253
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.487
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.133
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major