Bartek Wasilewski
type: MusicGroup
popularity: 5
followers: 130
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7c4ea5ef184e100dceab47d6d6848f5bbbfb277e1143528fc05b7213f0efa33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aaf14bb8-fde9-4089-a2ec-2db22cebb1de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aaf14bb8-fde9-4089-a2ec-2db22cebb1de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aaf14bb8-fde9-4089-a2ec-2db22cebb1de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7c4ea5ef184e100dceab47d6d6848f5bbbfb277e1143528fc05b7213f0efa33","name":"Bartek Wasilewski","registered_at":"2026-06-20T09:26:35Z","symbol":"NIM1579030","token_address":"0x653854c354b7867765e671296ab17bb682bbcc2a","type":"artist","uuid":"aaf14bb8-fde9-4089-a2ec-2db22cebb1de"}
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 0xa7c4ea5ef184e100dceab47d6d6848f5bbbfb277e1143528fc05b7213f0efa33. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aaf14bb8-fde9-4089-a2ec-2db22cebb1de.json and https://artists.proofprofile.net/proofs/artist/aaf14bb8-fde9-4089-a2ec-2db22cebb1de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xa7c4ea5ef184e100dceab47d6d6848f5bbbfb277e1143528fc05b7213f0efa33","name":"Bartek Wasilewski","registered_at":"2026-06-20T09:26:35Z","symbol":"NIM1579030","token_address":"0x653854c354b7867765e671296ab17bb682bbcc2a","type":"artist","uuid":"aaf14bb8-fde9-4089-a2ec-2db22cebb1de"}
track: Warto

Warto
type: MusicRecording
duration: PT2M48S
duration ms: 168134
explicit: false
by artist: Dobry Dzieciak
by artist: Kukon
by artist: Bartek Wasilewski
by artist: Wowo
in album: Diament
  type: MusicAlbum
  date published: 2024-08-30
isrc code: PLF242413503
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T05:45:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b398ef02e198cc7f57b1959e41d0589860c056eba2c8c006f17f241ab5c807f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF242413503
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x7b398ef02e198cc7f57b1959e41d0589860c056eba2c8c006f17f241ab5c807f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLF242413503.
  date published: 2026-07-02T03:30:09Z
audio: Warto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.812
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.868
  additional property: Energy
    type: PropertyValue
    value: 0.784
  additional property: Speechiness
    type: PropertyValue
    value: 0.273
  additional property: Acousticness
    type: PropertyValue
    value: 0.187
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.724
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.054
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major