Łukasz Majewski
type: MusicGroup
genre: sea shanties
popularity: 8
followers: 482
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa02cedeee3f1fbc33052aa02d99ac6fc0a9b5b06b26e91b2153de52f2ec2b656
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/859006e4-958f-4779-97e4-5fcc6dd5040d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/859006e4-958f-4779-97e4-5fcc6dd5040d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/859006e4-958f-4779-97e4-5fcc6dd5040d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa02cedeee3f1fbc33052aa02d99ac6fc0a9b5b06b26e91b2153de52f2ec2b656","name":"Łukasz Majewski","registered_at":"2026-06-17T12:11:10Z","symbol":"NIM1391461","token_address":"0x412351115d0d0b2381b06aff94a13a5cb9fb6b36","type":"artist","uuid":"859006e4-958f-4779-97e4-5fcc6dd5040d"}
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 0xa02cedeee3f1fbc33052aa02d99ac6fc0a9b5b06b26e91b2153de52f2ec2b656. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/859006e4-958f-4779-97e4-5fcc6dd5040d.json and https://artists.proofprofile.net/proofs/artist/859006e4-958f-4779-97e4-5fcc6dd5040d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa02cedeee3f1fbc33052aa02d99ac6fc0a9b5b06b26e91b2153de52f2ec2b656","name":"Łukasz Majewski","registered_at":"2026-06-17T12:11:10Z","symbol":"NIM1391461","token_address":"0x412351115d0d0b2381b06aff94a13a5cb9fb6b36","type":"artist","uuid":"859006e4-958f-4779-97e4-5fcc6dd5040d"}
album: Mężczyzna z zakolami
  type: MusicAlbum
  date published: 2013-10-14
album: Mężczyzna z Zakolami
  type: MusicAlbum
  date published: 2013-10-14
album: Ad Acta
  type: MusicAlbum
  date published: 2015-01-01
album: Niebajka
  type: MusicAlbum
  date published: 2017-09-14
  track: Ballada terapeutyczna
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194811
    explicit: false
    by artist: Łukasz Majewski
    in album: Niebajka
      type: MusicAlbum
      date published: 2017-09-14
    genre: sea shanties
    isrc code: PLN411700003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T08:03:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x224a506ef504f5a676c4b24b5e615418f4cf9ca440af4133a929e4d81853b03b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLN411700003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x224a506ef504f5a676c4b24b5e615418f4cf9ca440af4133a929e4d81853b03b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLN411700003.
      date published: 2026-07-03T08:56:35Z
    audio: Ballada terapeutyczna
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.711
      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: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.519
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.76
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.491
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.916
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Na prawo od Jiczyna
  type: MusicAlbum
  date published: 2019-05-09
album: Bosewo (Live)
  type: MusicAlbum
  date published: 2023-03-18