Agnieszka Duczmal
type: MusicGroup
description: Agnieszka Duczmal (Polish pronunciation: ; born 7 January 1946 in Krotoszyn, Poland) is a Polish conductor and founder of the Poznań Amadeus Orchestra. Early life and education She was born in 1946 i
popularity: 33
followers: 161
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54b03ad37533784e8b3cecd008e09f85d75fd887ae21c33fb3d310145bec60bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54b03ad37533784e8b3cecd008e09f85d75fd887ae21c33fb3d310145bec60bb","name":"Agnieszka Duczmal","registered_at":"2026-06-11T11:37:33Z","symbol":"NIM0016108","token_address":"0x384aefc3497c977bade38707f74030f4726b14f7","type":"artist","uuid":"0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2"}
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 0x54b03ad37533784e8b3cecd008e09f85d75fd887ae21c33fb3d310145bec60bb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2.json and https://artists.proofprofile.net/proofs/artist/0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x54b03ad37533784e8b3cecd008e09f85d75fd887ae21c33fb3d310145bec60bb","name":"Agnieszka Duczmal","registered_at":"2026-06-11T11:37:33Z","symbol":"NIM0016108","token_address":"0x384aefc3497c977bade38707f74030f4726b14f7","type":"artist","uuid":"0bdc18e3-8a12-445d-9d4d-1df9bcfcf7b2"}
album: A Guided Tour of the Classical Era, Vol. 2
  type: MusicAlbum
  date published: 2013-04-09
album: Beethoven, Debussy & Korngold: Works for Orchestra
  type: MusicAlbum
  date published: 2019-03-01