Replying to Avatar Cyph3rp9nk

Mempool

It is not true that you pay 1 s/B and the transaction will be Mempool

It is not true that you pay 1 s/B and the transaction will be confirmed.

For two reasons, the first one is that right now all transactions with less than 13.5 s/B are being discarded from the beginning and on the other hand you have the mempoolexpiry parameter that by default discards an unconfirmed transaction after 14 days.

It is also not true that if there is a node that keeps that transaction in the mempool because it has a higher mempoolexpiry configured, it will be confirmed, because the mempool is not retransmitted through the nodes, only the new transactions and the miner should feed from that mempool with a higher expiration time, therefore and in practice your transaction will be discarded after 14 days.
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Prem 2y ago

I have a number of transactions that mempool.space is saying were last seen 4 weeks ago. Which is true.

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Cyph3rp9nk 2y ago

Mempool.space does not use the default parameters, and even if you see the transaction on that website it does not mean it is confirmed because the miner will not query from that mempool, no two mempools are the same, the mempools of the nodes are not synchronized nor are they synchronized.