September 5th 2021 new story
TL;DR
Polkadot allows users to send transactions at a cost of zero dollars without paying fees. The transactions are the signed paid refund transaction, free signed transaction, and the unsigned transactions with a signed payload. These kinds of transactions also serve some behind-the-scenes technical purposes, like determining staking reward distribution, for example. Let’s discuss the cases where a zero-fee transaction makes sense, as well as how to actually implement them while protecting yourself from DDoS attacks by hackers.
@alfredodecandiaAlfredo de Candia
Author of "Mastering EOS" & "Mastering DeFi" blockchain specialist, android developer
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