Jürgen Kalwa
type: MusicGroup
popularity: 14
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x953005e3b16433f5d5697402bb300734c02ca43f51f411a690d7eb34290f26bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/894beb2f-8a35-474b-92c3-045de70ba4ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/894beb2f-8a35-474b-92c3-045de70ba4ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/894beb2f-8a35-474b-92c3-045de70ba4ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:05:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x953005e3b16433f5d5697402bb300734c02ca43f51f411a690d7eb34290f26bb","name":"Jürgen Kalwa","registered_at":"2026-06-14T18:51:03Z","symbol":"NIM0544273","token_address":"0x4dae3645a683248cd3b4eef88b33c758341d70b7","type":"artist","uuid":"894beb2f-8a35-474b-92c3-045de70ba4ba"}
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 0x953005e3b16433f5d5697402bb300734c02ca43f51f411a690d7eb34290f26bb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/894beb2f-8a35-474b-92c3-045de70ba4ba.json and https://artists.proofprofile.net/proofs/artist/894beb2f-8a35-474b-92c3-045de70ba4ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x953005e3b16433f5d5697402bb300734c02ca43f51f411a690d7eb34290f26bb","name":"Jürgen Kalwa","registered_at":"2026-06-14T18:51:03Z","symbol":"NIM0544273","token_address":"0x4dae3645a683248cd3b4eef88b33c758341d70b7","type":"artist","uuid":"894beb2f-8a35-474b-92c3-045de70ba4ba"}
album: Nichts als die Wahrheit (Der Fall Lance Armstrong und die Aufarbeitung eines der größten Betrugsskandale in der Geschichte des Sports)
  type: MusicAlbum
  date published: 2019-02-19