Every node can make up rules for mempools.
When I submit a transaction, I can attach a fee from 0 to however much I can afford. Obviously miners want to process as many transactions as they can to make money. A transaction with 0 fee makes them work for nothing so I would imagine most mempools are configured to ignore or drop transactions with 0 fee. Is this true?
Does Bitcoin ABC and Bitcoin Unlimited have different or similar rules for mempools? What are they?
Is there a good block explorer / transaction tracker where I can sort all recent (last week or so) transactions by fee and figure out what the lowest fee being processed is?
Are there any good sites out there that keep track of transactions when they first enter the mempool and how long they take to clear?
And let's say I create a transaction with 0 fee and submit it. Assuming nobody processes it... if I delete my wallet.dat and then reload Bitcoin unlimited/abc will I stop broadcasting it? And from that point how long before the transaction vanishes from all mempools?
Do most mempools refuse to even listen to 0 fee transactions? If I offer just a single satoshi will they hear it but refuse to process it for a while? Are there some miners out there that process even 0 fee transactions still?
Just curious. If I wanted to clean up inputs or play around with something that isn't worth 8 cents a transaction could I do it on BCH if I don't mind waiting or should I be playing with Dogecoin or something instead?
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source https://www.reddit.com/r/btc/comments/9pgc9a/what_happens_to_transactions_in_the_mempool/
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