typo/misinfo regarding dust outputs

[dbilitch]

Location: https://bitcoin.org/en/developer-guide#non-standard-transactions

If any of the transaction’s outputs spend less than a minimal value (currently 546 satoshis), the transaction must pay a minimum transaction fee (currently 10,000 satoshis).

I believe that 546 should read 5460. Also, I think the reference client will drop the transaction (not relay it) regardless of fees included in the transaction.

[gmaxwell]

Correct, the fee is irrelevant. People should be directed to pay that extra value you would have paid in fees into the output to get it over the threshold. This reduces the problem of people creating outputs which are unspendable or uneconomical to spend and forever increasing the size of the UTXO set.

[harding]

@dbilitch Thanks for your report! I think 546 is the correct minimal value currently. Please see: bitcoin/bitcoin@6a4c196

However, based on that same patch linked above, it looks like the minimum fee is 1,000 satoshis (not 10k, as we say). We use the 10,000 number in another part of the doc, which I'll update.

@gmaxwell If you have a moment, can you please confirm this is a correct statement regarding standard transactions for default Bitcoin Core? Once you confirm it, I'll push an update:

The transaction must not include any outputs which receive fewer than the defined minimum number of satoshis, currently 546.

Thanks!

[gmaxwell]

@harding Correct! It doesn't matter what the fee is, it could be a bazillion bitcoins. If any of the outputs are below the dust threshold nodes running unmodified bitcoin core code will not relay or mine the transaction.

[harding]

Misinformation fixed in f022b19. Thanks @dbilitch and @gmaxwell ! Closing this issue.

[saivann]

@harding Thanks!