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

Categories
Bitcoin

scripthash to address

It seems that electrumx stores scripthash, but I want to get all the wallet addresses.Continue readingscripthash to address

Categories
Bitcoin

I want to use RPC to get all historical transactions of an address

I want to use RPC to get all historical transactions of an address. I have synchronized the full node on my computer.Continue readingI want to use RPC to get all historical transactions of an address

Categories
Bitcoin

Can I use a bitcoind data from LAN from local bitcoin-qt?

I do not want to have bitcoin-qt started every time I boot my computer and other computers on my local LAN.Continue readingCan I use a bitcoind data from LAN from local bitcoin-qt?

Categories
Bitcoin

historical blk00000 coinbase analysis: is ~1.7 M bitcoins likely lost?

I am continuing to explore the early bitcoin blockchain using blk00000.dat covering 2009-01-03 to 2011-04-24 time period.Continue readinghistorical blk00000 coinbase analysis: is ~1.7 M bitcoins likely lost?

Categories
Bitcoin

Taproot inside coinbase transaction?

Now we are mining using “winner takes all” scheme. Every miner have to mine in pool or create the whole block alone with all transactions.Continue readingTaproot inside coinbase transaction?

Categories
Tutorials

How to cancel Bitcoin transaction?

When you send Bitcoin from your wallet to some other address it needs some time for transaction confirmation in the blockchain.Continue readingHow to cancel Bitcoin transaction?

Categories
Bitcoin

Step by step guide to go from public key to a Bech32 encoded address

I feel like having it step-by-step can make it a lot easier specially for developers.Continue readingStep by step guide to go from public key to a Bech32 encoded address

Categories
Cryptography

Using secp256k1 endomorphism

The existence of the endomorphism is a roughly 20% speedup in a plain multi-exp due to halving the number of doublings.Continue readingUsing secp256k1 endomorphism

Categories
Cryptography

Encrypting messages question

It isn’t the same with signing/verifying that you prove you own the address.Continue readingEncrypting messages question