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Concepts
Mempool
Where unconfirmed transactions wait before being added to a block
Definition
Each Bitcoin node holds a "memory pool" of valid but unconfirmed transactions. Mempool TXs can be replaced (RBF) or evicted before confirmation. Our mempool watcher surfaces whale moves ~3 seconds after broadcast, before block inclusion.
Context anchor
Mempool typically holds 1,000–50,000 TXs; spikes >100,000 indicate congestion
Example
We detect whale TXs ~3 seconds after they hit the mempool
Also known as
mempoolmemory poolunconfirmed pool