Marcin Nowakowski
type: MusicGroup
popularity: 18
followers: 563
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8264910770422b395d6bac74bdcfe026ce229fb0dbb52289c72544e9a60d70d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953736
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953736
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/985a4662-61a0-4f22-bd7e-3d68638c1914.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/985a4662-61a0-4f22-bd7e-3d68638c1914.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/985a4662-61a0-4f22-bd7e-3d68638c1914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:21:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8264910770422b395d6bac74bdcfe026ce229fb0dbb52289c72544e9a60d70d5","name":"Marcin Nowakowski","registered_at":"2026-06-14T20:29:40Z","symbol":"NIM0567784","token_address":"0x20e0e3aceab933048324bcda6584940b5589d60b","type":"artist","uuid":"985a4662-61a0-4f22-bd7e-3d68638c1914"}
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 0x8264910770422b395d6bac74bdcfe026ce229fb0dbb52289c72544e9a60d70d5. 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/985a4662-61a0-4f22-bd7e-3d68638c1914.json and https://artists.proofprofile.net/proofs/artist/985a4662-61a0-4f22-bd7e-3d68638c1914.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x8264910770422b395d6bac74bdcfe026ce229fb0dbb52289c72544e9a60d70d5","name":"Marcin Nowakowski","registered_at":"2026-06-14T20:29:40Z","symbol":"NIM0567784","token_address":"0x20e0e3aceab933048324bcda6584940b5589d60b","type":"artist","uuid":"985a4662-61a0-4f22-bd7e-3d68638c1914"}
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  type: MusicAlbum
  date published: 2009-09-09
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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