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Questions tagged [dust]

Dust refers to transaction outputs whose value isn't much more than the cost of spending them.

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What is meant by Bitcoin dust?

I've seen the term "dust" used to describe small transactions that might be considered as spam by the Bitcoin network. Is there is a generally accepted definition of this term?
David Ogren
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Why does bitcoin have so many digits if I cannot move anything freely under 10000 satoshi?

So I have a wallet which has a balance of BTC 0.00005493. Even when trying to send these last bitcoin with a custom tx fee (1000 satoshi vs. the recommended 10000) Blockchain.info gives an error saying it is not possible to do so. I know I can use a…
gosuto
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Since Bitcoin Core 0.14.0, how does a node with default settings compute the dust limit?

In earlier releases of Bitcoin Core, the dust limit was defined as an output whose spending would require more than 1/3 of its value as fees: https://bitcoin.stackexchange.com/a/41082/10845 The minimum fee was in turn defined by minRelayTxFee, a…
Rich Apodaca
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What is the dust limit on Bitcoin Cash transactions?

I understand from another question here on Stack Exchange that the dust limit for Bitcoin transactions is 546 satoshi, meaning that no transaction output may be on an amount less than that. What is the equivalent dust limit for Bitcoin Cash…
Thorkil Værge
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How many useable UTXOs are possible with BTC inside them?

I've heard there are somewhere in the range of 80-100 million possible UTXOs, where users could hold their own keys, with their BTC savings inside, and still have them spendable in the future. Best answers would factor all limits including: BTC…
Bitcoin Error Log
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How was the dust limit of 546 satoshis was chosen? Why not 550 satoshis?

Is there a reason why 546 satoshis was chosen as dust limit instead of 547 or even 550 satoshis, historically?
MCCCS
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Can you send amounts that would typically be considered 'dust' through the Lightning Network?

Reading through the Lightning Network Paper, it seems that amounts sent through an intermediate node use the Hash Timelocked Output construction. The thing I'm concerned about with HTLCs is that they actually require their own output.…
morsecoder
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Deanonymizing dust attack

What is the counter measure against dust attack, in case somebody tries to deanonymize me? Is there a possibility how to prevent somebody to send you intentional small dust, so that he can track your UTXOs? I think there is no counter measure to 1.…
boldi
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Wallet design: What to do with dust amounts in change?

I'm working on some quirks of a wallet I'm developing, and one of the issues is what to do with change amounts that are larger than dust ~600 satoshis, but less than a practical amount to be sent again with a fee. Should I return the near-dust…
m1xolyd1an
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Which inputs will be spent?

Say someone holds 100,000 btc. Over time, this address has been spammed with dust by numerous parties. Now, the oldest funds come from the previous large transaction. If the dust is, say 0.0000101 btc, can someone send this exact amount…
linhares
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Is it possible to spam the bitcoin network with 'dust'?

Someone could buy or mine bitcoins, and send them in small transactions all day to spam the blockchain. Is this possible? And could this mean the end of the trust people have in bitcoin? edit: And what if someone makes bigger than 0.01 BTC…
Barna Kovacs
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What's the best way to get rid of 1 satoshi dust?

I recently noticed an old address of mine had 1 satoshi sent to it in some dust spam transaction. The thought of this satoshi bloating the UTXO set for everyone bothers me. I'd like to "destroy" it, but I don't want to combine it with other inputs…
Daniel McNally
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1,500% transaction fee and 3,5 months to confirm?

So my service is skimming a tiny 0,001% (1/1,000) fee off every payment that gets through it. Most of the transactions are actually micro-payments so there are thousands of tiny unspent outputs accumulating in the service's wallet. I'm worried now…
Doug Peters
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How to consolidate dust transactions in 2017?

This has definitely been asked before but the questions I found were years old and I want to know if the landscape for dealing with this has improved, and if there's a simpler way for an "average user" to consolidate these tiny inputs. I have lots…
JVC
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Micro-payments definition and ideal platform

Have developers come close to reaching a consensus on either: The definition of micro payments? Whether micro-payments ideally belong on the main chain or side chains?
Jamal Wilson
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