Questions tagged [zero-confirmations]

questions about monero transactions that are still in the memory pool and have not received their first confirmation from miners

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Calculating the cost of a double spending attack

A toll booth owner wants to accept zero confirmation transactions (because waiting for confirmation would lead to long lines at the toll booth) and open the gate as soon as the transaction (with integrated payment ID) reaches the mempool. Is there a…
Logan
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Does Monero use replace-by-fee?

Replace by fee is a proposed mechanism for bitcoin (that has not been adopted) by which 0 confirmation transactions can be "undone" by submitting a transaction with a higher fee. Technically, this isn't part of the consensus protocol, since 0…
Christopher King
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Will 2 minute block times discourage retail merchant adoption?

Waiting an average of two minutes for a transaction confirmation is a long time when there is a line of people at a checkout counter. This is particularly true when compared to nearly instant Visa/Mastercard confirmations. Monero confirmations are…
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Does Monero have zero-conf?

Is there such a thing as zero-conf in Monero and if yes, then how does it work? Is it supported by the Monero client?
Symeof
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How could you lower the risk of accepting zero confirmation transactions?

As far as I heard monero nodes don't add double spent tx to their txpool (source), so if I connect to enough nodes it should be possible to lower the risk of a double spend attack right? (I could also cluster my control nodes if connection…
onefox
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