Oliver Kalkofe
type: MusicGroup
description: Oliver Lars Fred Kalkofe (born 12 September 1965) is a German actor, comedian, satirist, writer and audiobook narrator. Life and career Kalkofe was born in Hanover and grew up in Engelbostel and Pe
popularity: 6
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2683da6712156fe0da8244103ef3c7fcc841517b06e63eb6b9397a82865a41d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/723369f8-5fe8-4d1f-9949-56e16565a7d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/723369f8-5fe8-4d1f-9949-56e16565a7d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/723369f8-5fe8-4d1f-9949-56e16565a7d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2683da6712156fe0da8244103ef3c7fcc841517b06e63eb6b9397a82865a41d7","name":"Oliver Kalkofe","registered_at":"2026-06-17T05:25:36Z","symbol":"NIM1294766","token_address":"0x9c67ee9f6d46591471d84d58f98a08c52491fb99","type":"artist","uuid":"723369f8-5fe8-4d1f-9949-56e16565a7d5"}
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 0x2683da6712156fe0da8244103ef3c7fcc841517b06e63eb6b9397a82865a41d7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/723369f8-5fe8-4d1f-9949-56e16565a7d5.json and https://artists.proofprofile.net/proofs/artist/723369f8-5fe8-4d1f-9949-56e16565a7d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2683da6712156fe0da8244103ef3c7fcc841517b06e63eb6b9397a82865a41d7","name":"Oliver Kalkofe","registered_at":"2026-06-17T05:25:36Z","symbol":"NIM1294766","token_address":"0x9c67ee9f6d46591471d84d58f98a08c52491fb99","type":"artist","uuid":"723369f8-5fe8-4d1f-9949-56e16565a7d5"}