Roman Ziemlański
type: MusicGroup
popularity: 9
followers: 75
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbf75cf8dc4fc631f3fdd6fb92276baba656bae379d1ef89258f6326d6d92569
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b02351b-366d-46c8-99ba-6595b5caf855.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b02351b-366d-46c8-99ba-6595b5caf855.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b02351b-366d-46c8-99ba-6595b5caf855
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbbf75cf8dc4fc631f3fdd6fb92276baba656bae379d1ef89258f6326d6d92569","name":"Roman Ziemlański","registered_at":"2026-06-16T04:30:23Z","symbol":"NIM0937948","token_address":"0x0dd4f3042eb8575b8f5f2d519de919b664de1c93","type":"artist","uuid":"2b02351b-366d-46c8-99ba-6595b5caf855"}
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 0xbbf75cf8dc4fc631f3fdd6fb92276baba656bae379d1ef89258f6326d6d92569. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b02351b-366d-46c8-99ba-6595b5caf855.json and https://artists.proofprofile.net/proofs/artist/2b02351b-366d-46c8-99ba-6595b5caf855.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xbbf75cf8dc4fc631f3fdd6fb92276baba656bae379d1ef89258f6326d6d92569","name":"Roman Ziemlański","registered_at":"2026-06-16T04:30:23Z","symbol":"NIM0937948","token_address":"0x0dd4f3042eb8575b8f5f2d519de919b664de1c93","type":"artist","uuid":"2b02351b-366d-46c8-99ba-6595b5caf855"}
album: Melodie wiecznie młode
  type: MusicAlbum
  date published: 2006-09-25
album: Melodie Wiecznie Młode
  type: MusicAlbum
  date published: 2006-09-25
album: Czekam na list od Ciebie
  type: MusicAlbum
  date published: 2019-12-31
album: Dla każdego przebój mam
  type: MusicAlbum
  date published: 2019-12-31
album: Recital balladowy
  type: MusicAlbum
  date published: 2019-12-31
album: Niezapomniane nuty
  type: MusicAlbum
  date published: 2019-12-31
album: 4.
  type: MusicAlbum
  date published: 2019-12-31
album: Gitarowe kolędowanie
  type: MusicAlbum
  date published: 2019-12-31