David Jansen
type: MusicGroup
genre: epadunk
genre: russelåter
description: David Jansen (born 4 December 1987) is a German footballer who plays for Swiss club FC Naters.Rot-Weiss Essen: Abschied auch von Robin Urban, media-sportservice.de, 29 April 2019 References External
popularity: 20
followers: 329
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90bed7af76004cd2791fc0d72a5158568da965d5c850d7f025feec0c0861abed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42b8c58e-d661-4257-8527-ce6d7327c605.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42b8c58e-d661-4257-8527-ce6d7327c605.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42b8c58e-d661-4257-8527-ce6d7327c605
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90bed7af76004cd2791fc0d72a5158568da965d5c850d7f025feec0c0861abed","name":"David Jansen","registered_at":"2026-06-14T11:32:47Z","symbol":"NIM0439728","token_address":"0x32a719f6c60524e399754956d034a3b803e9656f","type":"artist","uuid":"42b8c58e-d661-4257-8527-ce6d7327c605"}
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 0x90bed7af76004cd2791fc0d72a5158568da965d5c850d7f025feec0c0861abed. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42b8c58e-d661-4257-8527-ce6d7327c605.json and https://artists.proofprofile.net/proofs/artist/42b8c58e-d661-4257-8527-ce6d7327c605.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x90bed7af76004cd2791fc0d72a5158568da965d5c850d7f025feec0c0861abed","name":"David Jansen","registered_at":"2026-06-14T11:32:47Z","symbol":"NIM0439728","token_address":"0x32a719f6c60524e399754956d034a3b803e9656f","type":"artist","uuid":"42b8c58e-d661-4257-8527-ce6d7327c605"}
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