Subnostr

Types of Nodes:

Full Node: Has downloaded and verified the entire blockchain.

Currently 750GB

Pruned Node: Has downloaded and verified the entire blockchain, but has discarded older transactions to save disk space.

Typically 250 GB

Lightweight Node: Has downloaded a copy of the UTXO set, a full list of spendable coins. An attached wallet needs this to check the validity of a proposed transaction. This is not fully verified until it is broadcast on the Bitcoin network, where full or pruned nodes can confirm this transaction.

Currently 12GB, has grown from 4GB since Taproot launched in November 2021.

This is a major discussion point in the OP_RETURN debate

Rich Nost 8mo ago

Slightly heavier light mode: Uses compact block filters built and provided by full nodes to get a probabaliatic indication that a new block contains a transaction it is monitoring. If the probability is high, it downloads and verifies the entire block.

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Discussion

mike 8mo ago

Interesting 🤔

Rich Nost 8mo ago

Also known as BIP157/158 or Neutrino. Sort of inverts the concept of bloom filters used by outdated "SPV" nodes.

mike 8mo ago

Right, now you’ve lost me

Techies 😂

Rich Nost 8mo ago

Look for "Compact Block Filters" in this doc

https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch10_network.adoc

mike 8mo ago

🙄

Rich Nost 8mo ago

This is how some mobile lightning wallets can claim to be a "node", like Zeus or Blixt.

mike 8mo ago

Ah yes, I kinda understood the reality of this claim.