Ewa Skardowska
type: MusicGroup
popularity: 3
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14db9001515a9f5ee70dd7470b0ce2959a42b745f67f96e9bb047b02214fb9a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9032c768-daad-497f-a2f4-9860e924ef77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9032c768-daad-497f-a2f4-9860e924ef77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9032c768-daad-497f-a2f4-9860e924ef77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x14db9001515a9f5ee70dd7470b0ce2959a42b745f67f96e9bb047b02214fb9a7","name":"Ewa Skardowska","registered_at":"2026-06-17T15:43:21Z","symbol":"NIM1442016","token_address":"0xd3a6b085737b8d8fcd6501015e00509ba7fd3185","type":"artist","uuid":"9032c768-daad-497f-a2f4-9860e924ef77"}
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 0x14db9001515a9f5ee70dd7470b0ce2959a42b745f67f96e9bb047b02214fb9a7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9032c768-daad-497f-a2f4-9860e924ef77.json and https://artists.proofprofile.net/proofs/artist/9032c768-daad-497f-a2f4-9860e924ef77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x14db9001515a9f5ee70dd7470b0ce2959a42b745f67f96e9bb047b02214fb9a7","name":"Ewa Skardowska","registered_at":"2026-06-17T15:43:21Z","symbol":"NIM1442016","token_address":"0xd3a6b085737b8d8fcd6501015e00509ba7fd3185","type":"artist","uuid":"9032c768-daad-497f-a2f4-9860e924ef77"}
album: Polish Piano Preludes Anew
  type: MusicAlbum
  date published: 2023-06-14
album: Polish Preludes
  type: MusicAlbum
  date published: 2024-12-20