Bitcoin Mempool Eviction: When Low-Fee Txs Disappear
Bitcoin's mempool purges low-fee transactions during fee spikes, a deliberate mechanism every sender should understand before broadcasting.
№ 002BitcoinBitcoin Dust Threshold: What Makes a UTXO Unspendable
The Bitcoin dust threshold isn't arbitrary. Here's the exact fee logic that turns a tiny UTXO into an unspendable output — and why it matters.