Bitcoin Stack Exchange

How to get UTXOs using Bitcoinj

java - How to get UTXOs using Bitcoinj - Bitcoin Stack Exchange Results from the 2022 Developer Survey are now available ...

How does SpeedyMuSig compare to MuSig2?

This is a work in progress answer. As always alternative answers are welcome. There is a comparison table included in the Crites, Komlo, Maller paper. The only downsides (included in the table and the paper) of SpeedyMuSig are the additional group...

Mining stale low-difficulty blocks as a DoS attack

Bitcoin determines the best chain by choosing the one with the most work. As "work" is a bit nebulous, it is specifically determined using a metric called "chainwork". Chainwork is just the expected number of hashes required to produce all of the bl...

Bitcoin hash rates/difficulty

Difficulty is defined relatively: it is how much more difficult it is to mine a block compared to a fixed "maximum target", which corresponds to roughly 232 hashes. In more detail, a Bitcoin block is PoW-valid when its hash (interpreted as a 256-bit...

Does Bitcoin fee depend on amount?

A Bitcoin transaction is a combination of one or more inputs and one or more outputs. Each input is itself an out put of a previous transaction. So it is not liquid. I think it is good to think of them as paper banks. If you buy something that costs...

Cold Storage of Exchanges

address - Cold Storage of Exchanges - Bitcoin Stack Exchange Results from the 2022 Developer Survey are now available ...

Review of multisig funds protection strategy

I want to protect my bitcoin and my threat model is that one of the two paper copies of the seed is accessed to recover the wallet and steal the funds. To mitigate this risk I am contemplating the options of a 2-out-3 multi-sig wall...