Joanna Domanska
type: MusicGroup
genre: chamber music
genre: classical piano
popularity: 2
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb95a6f21baf7b2f3c77dd21194bf34f91b2651f4112af5a25843cfda28df6c16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a76c988-a23c-45a0-8e86-9f3daa13c54f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a76c988-a23c-45a0-8e86-9f3daa13c54f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a76c988-a23c-45a0-8e86-9f3daa13c54f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb95a6f21baf7b2f3c77dd21194bf34f91b2651f4112af5a25843cfda28df6c16","name":"Joanna Domanska","registered_at":"2026-06-15T17:02:54Z","symbol":"NIM0773858","token_address":"0xf961c3edfe22132c4bc8e8ca8c5403232af65c8d","type":"artist","uuid":"0a76c988-a23c-45a0-8e86-9f3daa13c54f"}
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 0xb95a6f21baf7b2f3c77dd21194bf34f91b2651f4112af5a25843cfda28df6c16. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a76c988-a23c-45a0-8e86-9f3daa13c54f.json and https://artists.proofprofile.net/proofs/artist/0a76c988-a23c-45a0-8e86-9f3daa13c54f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0xb95a6f21baf7b2f3c77dd21194bf34f91b2651f4112af5a25843cfda28df6c16","name":"Joanna Domanska","registered_at":"2026-06-15T17:02:54Z","symbol":"NIM0773858","token_address":"0xf961c3edfe22132c4bc8e8ca8c5403232af65c8d","type":"artist","uuid":"0a76c988-a23c-45a0-8e86-9f3daa13c54f"}
album: 小さなピアニストのためのポーランド小品集
  type: MusicAlbum
  date published: 2011-07-31
album: 小さなピアニストのためのポーランド小品集 第2巻
  type: MusicAlbum
  date published: 2015-05-20
album: 小さなピアニストのためのポーランド小品集 第3巻
  type: MusicAlbum
  date published: 2019-06-28