Karl Valentin
type: MusicGroup
genre: comedy
description: Karl Valentin (, born Valentin Ludwig Fey; 4 June 1882 – 9 February 1948) was a Bavarian comedian. He had significant influence on German Weimar culture. Valentin starred in many silent films in the
popularity: 13
followers: 646
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ffcbfaee51161c0d2c5d8ea933ec64901a47ca84ce274a1a74c2347c520c470
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953612
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953612
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15a8ca39-d8df-486e-b517-58f087855273.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15a8ca39-d8df-486e-b517-58f087855273.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15a8ca39-d8df-486e-b517-58f087855273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:22:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ffcbfaee51161c0d2c5d8ea933ec64901a47ca84ce274a1a74c2347c520c470","name":"Karl Valentin","registered_at":"2026-06-14T06:46:38Z","symbol":"NIM0371482","token_address":"0x13e7690b6265c99428b6ccb4af51e4f64a4201ef","type":"artist","uuid":"15a8ca39-d8df-486e-b517-58f087855273"}
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 0x2ffcbfaee51161c0d2c5d8ea933ec64901a47ca84ce274a1a74c2347c520c470. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15a8ca39-d8df-486e-b517-58f087855273.json and https://artists.proofprofile.net/proofs/artist/15a8ca39-d8df-486e-b517-58f087855273.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T08:22:11Z
  text: {"copyright_id":"0x2ffcbfaee51161c0d2c5d8ea933ec64901a47ca84ce274a1a74c2347c520c470","name":"Karl Valentin","registered_at":"2026-06-14T06:46:38Z","symbol":"NIM0371482","token_address":"0x13e7690b6265c99428b6ccb4af51e4f64a4201ef","type":"artist","uuid":"15a8ca39-d8df-486e-b517-58f087855273"}
album: Charlie Chaplin of Germany, 1928 - 1947, Vol. 5
  type: MusicAlbum
  date published: 2015-07-31
album: Charlie Chaplin of Germany, 1928 - 1947, Vol. 4
  type: MusicAlbum
  date published: 2015-07-31
album: Charlie Chaplin of Germany, 1928 - 1947, Vol. 3
  type: MusicAlbum
  date published: 2015-07-31
album: Charlie Chaplin of Germany, 1928 - 1947, Vol. 2
  type: MusicAlbum
  date published: 2015-07-31
album: Charlie Chaplin of Germany, 1928 - 1947, Vol. 1
  type: MusicAlbum
  date published: 2015-07-31