Robert Franz
type: MusicGroup
description: right|thumb|Robert Franz Robert Franz Julius Knauth (28 June 1815 – 24 October 1892) was a German composer, mainly of . Biography Franz was born in Halle, Germany, the son of Christoph Franz Knauth.
popularity: 4
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1405ecf1f045d40c2fa559b5f0ebb1c94c33285aa2b94bf33de5b94b7c8862a2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4ceef15-128e-4139-ad2a-5ac2298d3f9a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4ceef15-128e-4139-ad2a-5ac2298d3f9a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4ceef15-128e-4139-ad2a-5ac2298d3f9a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1405ecf1f045d40c2fa559b5f0ebb1c94c33285aa2b94bf33de5b94b7c8862a2","name":"Robert Franz","registered_at":"2026-06-21T02:15:07Z","symbol":"NIM1788670","token_address":"0xc1671ef66f3bdb6b96e0aaab2f5a19d72c7dac9d","type":"artist","uuid":"d4ceef15-128e-4139-ad2a-5ac2298d3f9a"}
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 0x1405ecf1f045d40c2fa559b5f0ebb1c94c33285aa2b94bf33de5b94b7c8862a2. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4ceef15-128e-4139-ad2a-5ac2298d3f9a.json and https://artists.proofprofile.net/proofs/artist/d4ceef15-128e-4139-ad2a-5ac2298d3f9a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x1405ecf1f045d40c2fa559b5f0ebb1c94c33285aa2b94bf33de5b94b7c8862a2","name":"Robert Franz","registered_at":"2026-06-21T02:15:07Z","symbol":"NIM1788670","token_address":"0xc1671ef66f3bdb6b96e0aaab2f5a19d72c7dac9d","type":"artist","uuid":"d4ceef15-128e-4139-ad2a-5ac2298d3f9a"}
album: Robert Franz: Heinrich Heine Lieder
  type: MusicAlbum
  date published: 1992-01-01
album: Franz, R.: Lieder - Opp. 1, 2, 5, 6, 7, 9, 10, 11, 13, 17, 18, 24, 25, 28, 30, 33, 36, 42, 48
  type: MusicAlbum
  date published: 1995-01-01
album: Franz, R.: Lieder - Opp. 1, 2, 5, 6, 7, 9, 10, 11, 13, 17, 18, 24, 25, 28, 30, 33, 36, 42, 48
  type: MusicAlbum
  date published: 1995-01-01
album: Robert Franz, Lieder
  type: MusicAlbum
  date published: 2002-01-01
album: Robert Franz: Lieder
  type: MusicAlbum
  date published: 2017-06-02
album: Franz: Collected Osterwald Lieder & Songs
  type: MusicAlbum
  date published: 2019-11-15
album: Franz: Collected Osterwald Lieder & Songs
  type: MusicAlbum
  date published: 2019-11-15