Michał Tomaszczyk
type: MusicGroup
popularity: 4
followers: 368
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x457b86d6f471740e959b9afa49d6abd1bf4a6a093572b164989f64f4cc0548e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10a25e1e-918a-4269-9822-a9a261c7bc1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10a25e1e-918a-4269-9822-a9a261c7bc1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/10a25e1e-918a-4269-9822-a9a261c7bc1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x457b86d6f471740e959b9afa49d6abd1bf4a6a093572b164989f64f4cc0548e7","name":"Michał Tomaszczyk","registered_at":"2026-06-15T19:35:26Z","symbol":"NIM0810261","token_address":"0x277ff72f9de4f5b2db3c654e8ac2a8c2c7284fb4","type":"artist","uuid":"10a25e1e-918a-4269-9822-a9a261c7bc1f"}
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 0x457b86d6f471740e959b9afa49d6abd1bf4a6a093572b164989f64f4cc0548e7. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10a25e1e-918a-4269-9822-a9a261c7bc1f.json and https://artists.proofprofile.net/proofs/artist/10a25e1e-918a-4269-9822-a9a261c7bc1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x457b86d6f471740e959b9afa49d6abd1bf4a6a093572b164989f64f4cc0548e7","name":"Michał Tomaszczyk","registered_at":"2026-06-15T19:35:26Z","symbol":"NIM0810261","token_address":"0x277ff72f9de4f5b2db3c654e8ac2a8c2c7284fb4","type":"artist","uuid":"10a25e1e-918a-4269-9822-a9a261c7bc1f"}
album: Sketches from the North
  type: MusicAlbum
  date published: 2020-11-10
album: My Song of Hope
  type: MusicAlbum
  date published: 2021-02-25
album: Equal Dignity
  type: MusicAlbum
  date published: 2022-11-04
album: Tints
  type: MusicAlbum
  date published: 2022-12-02
album: Tranquility
  type: MusicAlbum
  date published: 2023-01-06
album: Zadora
  type: MusicAlbum
  date published: 2023-03-17
track: Janusz Andrzej Nowak

Janusz Andrzej Nowak
type: MusicRecording
duration: PT4M18S
duration ms: 258665
explicit: false
by artist: Ten Typ Mes
by artist: Michał Tomaszczyk
in album: Trzeba było zostać dresiarzem
  type: MusicAlbum
  date published: 2014
genre: polish-alternative-rap
genre: polish-hip-hop
isrc code: PLD111400003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T20:17:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ef2349ba0f75ad374958ffd0702e6b9eed9e7bd2178d4e4ef9514e14425fb35
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD111400003
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef2349ba0f75ad374958ffd0702e6b9eed9e7bd2178d4e4ef9514e14425fb35. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLD111400003.
  date published: 2026-07-02T05:09:12Z
audio: Janusz Andrzej Nowak
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.205
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.511
  additional property: Energy
    type: PropertyValue
    value: 0.718
  additional property: Speechiness
    type: PropertyValue
    value: 0.33
  additional property: Acousticness
    type: PropertyValue
    value: 0.127
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.575
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.528
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major