Categories
Bitcoin

How does TxFee work?

If I send BTC I have to pay a fee in relation to the size of my tx – so far so good. But what happens with this fee?Continue readingHow does TxFee work?

Categories
Bitcoin

How to place tx in own mempool without broadcasting?

Is there a way I can add a transaction to my own memory pool without broadcasting it to the network?Continue readingHow to place tx in own mempool without broadcasting?

Categories
Bitcoin

By what formula is the genesis-hash calculated?

I understand that this is a hash from something, but from what?Continue readingBy what formula is the genesis-hash calculated?

Categories
Tutorials

[overview] Recover Bitcoin from any old storage format

The aim of this thread is to give a complete overview for anyone who finds Bitcoins in any storage format.Continue reading[overview] Recover Bitcoin from any old storage format

Categories
Tutorials

How Bitcoin Addresses are generated? Understand the Math behind Bitcoin

To use Bitcoin, user generally needs two things: Private Key and Bitcoin Address.Continue readingHow Bitcoin Addresses are generated? Understand the Math behind Bitcoin

Categories
Tutorials

[Full Guide+Code]Seed Phrase & The Process of Deriving Bitcoin Addresses from It

Earlier Bitcoin Wallet used to be a bunch of private keys. In order to use new address, user had to generate new private key which made the whole process cumbersome because user had to backup each and every private key. Hierarchical Deterministic (HD) wallet made the process easier.Continue reading[Full Guide+Code]Seed Phrase & The Process of Deriving Bitcoin Addresses from It

Categories
Cryptography

Question on DER-encoding of signature pair (r, s)

I’ve been working through the byte-level details of bitcoin transactions and I need some help on DER-encoding.Continue readingQuestion on DER-encoding of signature pair (r, s)

Categories
Cryptography

How does “recid” variable work in libspec256k1 library?

I’m trying to understand how does “recid” (Recovery ID) variable work in libspec256k1 library (with C language).Continue readingHow does “recid” variable work in libspec256k1 library?

Categories
Bitcoin

Why does vout sometimes not have address?

I am trying to parse all transactions. I found that some transactions do not have addresses in their vout.Continue readingWhy does vout sometimes not have address?

Categories
Bitcoin

mnemocheck, checks that your seed phrase matches an address

I’ve always had this small doubt that those seed words I wrote down and encrypted might have a typo.Continue readingmnemocheck, checks that your seed phrase matches an address