April 2018
Intermediate to advanced
412 pages
11h 41m
German
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Segregated Witness
Segregated Witness (Segwit) ist ein Update der Bitcoin-Konsensregeln und des Netzwerkprotokolls. Es wurde in BIP-9 als Soft Fork vorgeschlagen und implementiert und nach lang anhaltenden und heftigen Diskussionen im August 2017 erfolgreich aktiviert.
In der Kryptografie beschreibt der Begriff »Witness« (deutsch bezeugen/beglaubigen) die Lösung eines kryptografischen Puzzles. Bei Bitcoin erfüllt die Witness eine kryptografische Bedingung, die mit einem noch nicht eingelösten Transaktions-Output (UTXO) verknüpft wurde.
Im Bitcoin-Kontext ist eine digitale Signatur eine Art Witness, doch weiter gefasst ist eine Witness jede Lösung, die die Bedingungen erfüllt, die mit einem UTXO verknüpft sind und ihn freigeben, sodass ...
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