{"lastUpload":"2020-02-18T08:12:25.137Z","extensionVersion":"v3.4.3"} |
This is a scheme for discovering the current "unspent transaction output set"; it could be used to bootstrap a node that stores the UTXO set using a Cuckoo Filter.
It has the following nice properties:
- It starts with an empty UTXO set, but quickly discovers a large enough subset to validate a majority of new transactions (TODO: empirically measure how many blocks to be able to validate 50+% of new tx), and incrementally gets better over time.
- It uses a simple data structure to keep track of progress (TODO: empirically calculate maximum size of the spent set processing tip to genesis).
- It doesn't require any consensus-level change or require miners to maintain any extra data structures or indexes.
However, it does require downloading every single block.
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