Darek Oleszkiewicz
type: MusicGroup
description: Darek Oleszkiewicz (born February 20, 1963), also known as Darek Oles, is a jazz bassist, composer, arranger, and educator. Biography Oleszkiewicz was born in Wrocław, Poland, on February 20, 1963. H
popularity: 20
followers: 818
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ee053a98aca58b63b7d4afa6e0120b8f502cd1451c7b09da4bfda9c5de6f513
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953733
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9634aab8-d350-4b23-ada6-f46b3df11260
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:12:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ee053a98aca58b63b7d4afa6e0120b8f502cd1451c7b09da4bfda9c5de6f513","name":"Darek Oleszkiewicz","registered_at":"2026-06-14T20:17:29Z","symbol":"NIM0564871","token_address":"0x7889d6f8ce8b4234263539e72065a98e97bf67c6","type":"artist","uuid":"9634aab8-d350-4b23-ada6-f46b3df11260"}
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 0x4ee053a98aca58b63b7d4afa6e0120b8f502cd1451c7b09da4bfda9c5de6f513. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.json and https://artists.proofprofile.net/proofs/artist/9634aab8-d350-4b23-ada6-f46b3df11260.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x4ee053a98aca58b63b7d4afa6e0120b8f502cd1451c7b09da4bfda9c5de6f513","name":"Darek Oleszkiewicz","registered_at":"2026-06-14T20:17:29Z","symbol":"NIM0564871","token_address":"0x7889d6f8ce8b4234263539e72065a98e97bf67c6","type":"artist","uuid":"9634aab8-d350-4b23-ada6-f46b3df11260"}
album: Blues for Charlie
  type: MusicAlbum
  date published: 2019-07-09
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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