Koshik Raj koshikraj

GPG - SSH setup

Generating the master key

Here we create the master key. We want only Certify capability: we use the master key only to create the subkeys, Sign - Encrypt - Authenticate capabilities will be assigned to the subkeys.

Run the following command to start the master key generation process. Select the set your own capabilities creation process (type 8)

  ▶ gpg --full-generate-key --expert

This has moved to https://github.com/bitcoin/bitcoin/blob/master/doc/reduce-memory.md

O(1) Block Propagation

The problem

Bitcoin miners want their newly-found blocks to propagate across the network as quickly as possible, because every millisecond of delay increases the chances that another block, found at about the same time, wins the "block race."

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

	user www-data;
	worker_processes auto;
	pid /run/nginx.pid;

	events {
	worker_connections 768;
	}

	http {
	sendfile on;

	pragma solidity ^0.4.19;

	contract ERC20Basic {

	string public constant name = "ERC20Basic";
	string public constant symbol = "BSC";
	uint8 public constant decimals = 18;


	event Approval(address indexed tokenOwner, address indexed spender, uint tokens);

	pragma solidity ^0.6.4;
	// We have to specify what version of compiler this code will compile with

	contract Voting {
	/* mapping field below is equivalent to an associative array or hash.
	The key of the mapping is candidate name stored as type bytes32 and value is
	an unsigned integer to store the vote count
	*/

	mapping (bytes32 => uint256) public votesReceived;

	# ----------------------------------------------
	# hashcash.py: Hashcash implementation
	# ----------------------------------------------

	"""
	Hashcash is a "proof of work."

	Example:
	>>> import sha
	>>> sha.new('denmark2890CF').hexdigest() '000000cf89643370c24e413ec0886ab92bd7f6e8'

	var data = "do shash'owania";
	var crypto = require('crypto');
	crypto.createHash('md5').update(data).digest("hex");