Ulrike Kern
type: MusicGroup
popularity: 3
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2226ce96630e466a110d0f28180750a68ae583686577ad256374dd193d070cb9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faf3c4e7-aeeb-4e05-a518-d5b620a0d301.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faf3c4e7-aeeb-4e05-a518-d5b620a0d301.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/faf3c4e7-aeeb-4e05-a518-d5b620a0d301
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2226ce96630e466a110d0f28180750a68ae583686577ad256374dd193d070cb9","name":"Ulrike Kern","registered_at":"2026-06-21T17:00:51Z","symbol":"NIM1980693","token_address":"0x21c485181f3a5cc96995363be2dfbc52ccd2bb37","type":"artist","uuid":"faf3c4e7-aeeb-4e05-a518-d5b620a0d301"}
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 0x2226ce96630e466a110d0f28180750a68ae583686577ad256374dd193d070cb9. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faf3c4e7-aeeb-4e05-a518-d5b620a0d301.json and https://artists.proofprofile.net/proofs/artist/faf3c4e7-aeeb-4e05-a518-d5b620a0d301.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x2226ce96630e466a110d0f28180750a68ae583686577ad256374dd193d070cb9","name":"Ulrike Kern","registered_at":"2026-06-21T17:00:51Z","symbol":"NIM1980693","token_address":"0x21c485181f3a5cc96995363be2dfbc52ccd2bb37","type":"artist","uuid":"faf3c4e7-aeeb-4e05-a518-d5b620a0d301"}
album: Orgeln aus der Reubke-Werkstatt (Eine Klangdokumentation mit Ulrike Kern und Michael Schulze)
  type: MusicAlbum
  date published: 2013-12-20