Piotr Michałowski
type: MusicGroup
genre: ambient
genre: dark ambient
genre: drone
genre: dub techno
description: Piotr Michałowski (July 2, 1800 – June 9, 1855) was a Polish painter of the Romantic period, especially known for his many portraits, and oil studies of horses. Broadly educated, he was also a social
popularity: 3
followers: 325
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x806109600bf802847d38faf02d99cfb064d2a6525d6201a8d5f8421835ae5dca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2752b1e-2cba-4486-8599-f0fd14e8964c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2752b1e-2cba-4486-8599-f0fd14e8964c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2752b1e-2cba-4486-8599-f0fd14e8964c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x806109600bf802847d38faf02d99cfb064d2a6525d6201a8d5f8421835ae5dca","name":"Piotr Michałowski","registered_at":"2026-06-20T06:20:35Z","symbol":"NIM1538669","token_address":"0x6a8508e89e94d85ed812be0afd9e5b85effb55da","type":"artist","uuid":"a2752b1e-2cba-4486-8599-f0fd14e8964c"}
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 0x806109600bf802847d38faf02d99cfb064d2a6525d6201a8d5f8421835ae5dca. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2752b1e-2cba-4486-8599-f0fd14e8964c.json and https://artists.proofprofile.net/proofs/artist/a2752b1e-2cba-4486-8599-f0fd14e8964c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x806109600bf802847d38faf02d99cfb064d2a6525d6201a8d5f8421835ae5dca","name":"Piotr Michałowski","registered_at":"2026-06-20T06:20:35Z","symbol":"NIM1538669","token_address":"0x6a8508e89e94d85ed812be0afd9e5b85effb55da","type":"artist","uuid":"a2752b1e-2cba-4486-8599-f0fd14e8964c"}
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  type: MusicAlbum
  date published: 2021-02-12
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