Marta Knorr
type: MusicGroup
popularity: 8
followers: 255
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34ffdae83d8f93dfb31888e862a172b354b92ce462035b476d87a4917363f1cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07791b37-3a40-4d18-bc46-2a1f3706203f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07791b37-3a40-4d18-bc46-2a1f3706203f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/07791b37-3a40-4d18-bc46-2a1f3706203f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x34ffdae83d8f93dfb31888e862a172b354b92ce462035b476d87a4917363f1cf","name":"Marta Knorr","registered_at":"2026-06-15T16:21:49Z","symbol":"NIM0764059","token_address":"0x07ed34e285e979daaabff189b7fef509b4e8bb1f","type":"artist","uuid":"07791b37-3a40-4d18-bc46-2a1f3706203f"}
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 0x34ffdae83d8f93dfb31888e862a172b354b92ce462035b476d87a4917363f1cf. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07791b37-3a40-4d18-bc46-2a1f3706203f.json and https://artists.proofprofile.net/proofs/artist/07791b37-3a40-4d18-bc46-2a1f3706203f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x34ffdae83d8f93dfb31888e862a172b354b92ce462035b476d87a4917363f1cf","name":"Marta Knorr","registered_at":"2026-06-15T16:21:49Z","symbol":"NIM0764059","token_address":"0x07ed34e285e979daaabff189b7fef509b4e8bb1f","type":"artist","uuid":"07791b37-3a40-4d18-bc46-2a1f3706203f"}
album: Recital Lírico Marta Knörr
  type: MusicAlbum
  date published: 1998-01-01
album: Canciones del Grupo de Madrid
  type: MusicAlbum
  date published: 2001-02-01
album: Compositoras Españolas del S.XX
  type: MusicAlbum
  date published: 2006-02-08