David Jahn
type: MusicGroup
description: David Jahn is a neo-burlesque impresario, filmmaker and musician based in Prague, Czech Republic.Staněk, L., "Sexy jako kdysi: Burleska zažívá znovu světový boom", Reflex, Feb. 27, 2013. Burlesque Ja
popularity: 13
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00f088e61b56778386f90c8fbae3ea5dc36b189f3137af1ad81ab6ae253b1c45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953617
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953617
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b42ce4d-8bc0-4039-83ed-feea73410264.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b42ce4d-8bc0-4039-83ed-feea73410264.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b42ce4d-8bc0-4039-83ed-feea73410264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:00:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x00f088e61b56778386f90c8fbae3ea5dc36b189f3137af1ad81ab6ae253b1c45","name":"David Jahn","registered_at":"2026-06-14T07:20:53Z","symbol":"NIM0379656","token_address":"0x95f818d91285849021a9b04556e2bf719e96d157","type":"artist","uuid":"1b42ce4d-8bc0-4039-83ed-feea73410264"}
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 0x00f088e61b56778386f90c8fbae3ea5dc36b189f3137af1ad81ab6ae253b1c45. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b42ce4d-8bc0-4039-83ed-feea73410264.json and https://artists.proofprofile.net/proofs/artist/1b42ce4d-8bc0-4039-83ed-feea73410264.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
  text: {"copyright_id":"0x00f088e61b56778386f90c8fbae3ea5dc36b189f3137af1ad81ab6ae253b1c45","name":"David Jahn","registered_at":"2026-06-14T07:20:53Z","symbol":"NIM0379656","token_address":"0x95f818d91285849021a9b04556e2bf719e96d157","type":"artist","uuid":"1b42ce4d-8bc0-4039-83ed-feea73410264"}