📅 Original date posted:2021-10-07
📝 Original message:Good morning e,
> mostly thinking out loud
>
> suppose there is a "lightweight" node:
>
> 1. ignores utxo's below the dust limit
> 2. doesn't validate dust tx
> 3. still validates POW, other tx, etc.
>
> these nodes could possibly get forked - accepting a series of valid,
> mined blocks where there is an invalid but ignored dust tx, however
> this attack seems every bit as expensive as a 51% attack
How would such a node treat a transaction that spends multiple dust UTXOs and creates a single non-dust UTXO out of them (after fees)?
Is it valid (to such a node) or not?
I presume from #1 it never stores dust UTXOs, so the node cannot know if the UTXO being spent by such a tx is spending dust, or trying to spend an already-spent TXO, or even inventing a TXO out of `/dev/random`.
Regards,
ZmnSCPxj
ZmnSCPxj [ARCHIVE] /
npub1g5…3ms3l
2023-06-07 22:59:50
in reply to nevent1q…ajqu
Author Public Key
npub1g5zswf6y48f7fy90jf3tlcuwdmjn8znhzaa4vkmtxaeskca8hpss23ms3lPublished at
2023-06-07 22:59:50Event JSON
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"content": "📅 Original date posted:2021-10-07\n📝 Original message:Good morning e,\n\n\u003e mostly thinking out loud\n\u003e\n\u003e suppose there is a \"lightweight\" node:\n\u003e\n\u003e 1. ignores utxo's below the dust limit\n\u003e 2. doesn't validate dust tx\n\u003e 3. still validates POW, other tx, etc.\n\u003e\n\u003e these nodes could possibly get forked - accepting a series of valid,\n\u003e mined blocks where there is an invalid but ignored dust tx, however\n\u003e this attack seems every bit as expensive as a 51% attack\n\nHow would such a node treat a transaction that spends multiple dust UTXOs and creates a single non-dust UTXO out of them (after fees)?\nIs it valid (to such a node) or not?\n\nI presume from #1 it never stores dust UTXOs, so the node cannot know if the UTXO being spent by such a tx is spending dust, or trying to spend an already-spent TXO, or even inventing a TXO out of `/dev/random`.\n\nRegards,\nZmnSCPxj",
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