root
/
public
mirror of https://github.com/01-edu/public.git
14
27
Fork 0
Code Releases Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
4437 Commits
90 Branches
11 Tags
349 MiB
 
 
 
 
 
 
Tree: 88eee63db2
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '88eee63db2'
${ noResults }
public/subjects/blockchain/send-transaction
jrosendo 7a960f7d00
docs(blockchain): add blockchain branch subjects to public 		2 years ago
..
README.md docs(blockchain): add blockchain branch subjects to public 2 years ago

README.md

Send Transaction

The purpose of this exercise is to create a simple Bitcoin transaction locally using the command line. As we use new tools this exercise is guided.

Instructions

  • Install a Bitcoin node. There are two solutions :

    • Use a preconfigured image for a virtual machine such as cryptotux
    • Install manually by downloading and installing the Bitcoin Core software from github.

  • Launch Bitcoin core daemon on regtest network. You can do so with bitcoind -regtest -fallbackfee=0.00000003 assuming the executable is in your shell's path.

  • Create manually a wallet and two addresses on Bitcoin regtest. You may do this by running the following commands

    bitcoin-cli createwallet "testwallet"
bitcoin-cli getnewaddress
bitcoin-cli getnewaddress

  • Generate 101 blocks to get fresh bitcoins. You need 101 blocks as the Bitcoin you receive from mining are locked for 100 blocks. You may use the following command bitcoin-cli -regtest generatetoaddress 101 <your address>

  • Send a transaction of 2 bitcoins to the second address.

  • List the last transactions bitcoin-cli listtransactions

  • Create a js file and exports the hash of your transaction in a variable txid.

Usage

exports.txid =
  "be3d0d245e7dce50964ac9157aee7e18a3828e11d89f72ee0bc3f76b526e5bb";

Congrats for your first Bitcoin transaction!

Notions