Eva Klarbach
type: MusicGroup
genre: classical
popularity: 8
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe7e358ec613de0c15af0fc9803e445f993959a9310abd6b8ae93301452d7f15a
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/887a546a-bcb8-4dfc-a8dc-873a09a8f79e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/887a546a-bcb8-4dfc-a8dc-873a09a8f79e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/887a546a-bcb8-4dfc-a8dc-873a09a8f79e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe7e358ec613de0c15af0fc9803e445f993959a9310abd6b8ae93301452d7f15a","name":"Eva Klarbach","registered_at":"2026-06-17T13:13:28Z","symbol":"NIM1406233","token_address":"0x544f520f5f02ed0b8097056c7407dd5c8afe56de","type":"artist","uuid":"887a546a-bcb8-4dfc-a8dc-873a09a8f79e"}
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 0xe7e358ec613de0c15af0fc9803e445f993959a9310abd6b8ae93301452d7f15a. 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/887a546a-bcb8-4dfc-a8dc-873a09a8f79e.json and https://artists.proofprofile.net/proofs/artist/887a546a-bcb8-4dfc-a8dc-873a09a8f79e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xe7e358ec613de0c15af0fc9803e445f993959a9310abd6b8ae93301452d7f15a","name":"Eva Klarbach","registered_at":"2026-06-17T13:13:28Z","symbol":"NIM1406233","token_address":"0x544f520f5f02ed0b8097056c7407dd5c8afe56de","type":"artist","uuid":"887a546a-bcb8-4dfc-a8dc-873a09a8f79e"}
album: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2021-01-15
album: Carnaval, Op. 9
  type: MusicAlbum
  date published: 2021-01-18
album: Mozart Early Pieces
  type: MusicAlbum
  date published: 2021-10-12
album: Verdi - La Traviata, Pt. 12
  type: MusicAlbum
  date published: 2021-10-20
album: Mozart Songs, Vol. 1
  type: MusicAlbum
  date published: 2021-11-02
album: Beethoven Piano Works, Vol. 2
  type: MusicAlbum
  date published: 2021-11-09
album: Franz Liszt - Paraphrase de concert sur Rigoletto
  type: MusicAlbum
  date published: 2021-11-12
album: Scarlatti Sonatas, Vol. 3
  type: MusicAlbum
  date published: 2021-11-17
album: 24 Preludes, Op.37
  type: MusicAlbum
  date published: 2021-11-18
album: Scarlatti Sonatas, Vol. 4
  type: MusicAlbum
  date published: 2021-11-18