Bartosz Madej
type: MusicGroup
popularity: 5
followers: 887
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x597aab8aee7dfe6be0d4e93badd3a2d3f5ddd9cee943153d113c5d82416e8cf9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adf5544a-f5d5-4220-8631-a96e751f7819.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adf5544a-f5d5-4220-8631-a96e751f7819.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adf5544a-f5d5-4220-8631-a96e751f7819
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x597aab8aee7dfe6be0d4e93badd3a2d3f5ddd9cee943153d113c5d82416e8cf9","name":"Bartosz Madej","registered_at":"2026-06-20T11:17:04Z","symbol":"NIM1599350","token_address":"0xf70dcb99bf3549cc6562b1a51de63fbccee4161f","type":"artist","uuid":"adf5544a-f5d5-4220-8631-a96e751f7819"}
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 0x597aab8aee7dfe6be0d4e93badd3a2d3f5ddd9cee943153d113c5d82416e8cf9. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adf5544a-f5d5-4220-8631-a96e751f7819.json and https://artists.proofprofile.net/proofs/artist/adf5544a-f5d5-4220-8631-a96e751f7819.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0x597aab8aee7dfe6be0d4e93badd3a2d3f5ddd9cee943153d113c5d82416e8cf9","name":"Bartosz Madej","registered_at":"2026-06-20T11:17:04Z","symbol":"NIM1599350","token_address":"0xf70dcb99bf3549cc6562b1a51de63fbccee4161f","type":"artist","uuid":"adf5544a-f5d5-4220-8631-a96e751f7819"}
album: Moje Serce
  type: MusicAlbum
  date published: 2021-11-26
  track: Moje Serce
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194473
    explicit: false
    by artist: Bartosz Madej
    in album: Moje Serce
      type: MusicAlbum
      date published: 2021-11-26
    isrc code: PLUM72100852
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T00:21:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92a54b0d2f0963ab351f6f2d1ae5051acae825eecebc8244e8f0944ea4e9b829
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957788
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957788
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLUM72100852
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T02:37:37Z
    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 0x92a54b0d2f0963ab351f6f2d1ae5051acae825eecebc8244e8f0944ea4e9b829. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/PLUM72100852.
      date published: 2026-07-13T02:37:37Z
    audio: Moje Serce
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.938
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.614
      additional property: Energy
        type: PropertyValue
        value: 0.63
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.096
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.351
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.444
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sobą jestem
  type: MusicAlbum
  date published: 2023-09-29