Marian Nowakowski
type: MusicGroup
popularity: 2
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88d5a90d7c37e73886208af24f5bdcde40ed961c3929c6a1fa02819c1ad48d44
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58349d9-920a-4a98-89f6-97c4086d61ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58349d9-920a-4a98-89f6-97c4086d61ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c58349d9-920a-4a98-89f6-97c4086d61ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x88d5a90d7c37e73886208af24f5bdcde40ed961c3929c6a1fa02819c1ad48d44","name":"Marian Nowakowski","registered_at":"2026-06-20T21:19:04Z","symbol":"NIM1716753","token_address":"0x570b949885e7186a7408208ffed4ae7af8a1a6c1","type":"artist","uuid":"c58349d9-920a-4a98-89f6-97c4086d61ed"}
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 0x88d5a90d7c37e73886208af24f5bdcde40ed961c3929c6a1fa02819c1ad48d44. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c58349d9-920a-4a98-89f6-97c4086d61ed.json and https://artists.proofprofile.net/proofs/artist/c58349d9-920a-4a98-89f6-97c4086d61ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x88d5a90d7c37e73886208af24f5bdcde40ed961c3929c6a1fa02819c1ad48d44","name":"Marian Nowakowski","registered_at":"2026-06-20T21:19:04Z","symbol":"NIM1716753","token_address":"0x570b949885e7186a7408208ffed4ae7af8a1a6c1","type":"artist","uuid":"c58349d9-920a-4a98-89f6-97c4086d61ed"}
album: Verdi: Otello (Live Recordings 1955)
  type: MusicAlbum
  date published: 2014-10-28