RobinLinus

zkCoins

Edit: here you can find our research paper describing the protocol more in-depth.

zkCoins is a novel blockchain design with strong privacy and scalability properties. It combines client-side validation with a zero-knowledge proof system. The chain is reduced to a minimum base layer to prevent double spending. Most of the verification complexity is moved off-chain and communicated directly between the individual sender and recipient of a transaction. There are very few global consensus rules, which makes block validation simple. Not even a global UTXO set is required.

In contrast to zk-rollups there is no data availability problem, and no sequencer is required to coordinate a global proof aggregation. The protocol can be implemented as an additional layer contained in Bitcoin's blockchain (similar to RGB[^5] or Taro[^6]) or as a standalone sidechain.

The throughput scales to hundreds of transactions per

fernandoporazzi

TL;DR: nostr¹ é um protocolo que tem o poder de substituir ferramentas como Twitter, Telegram e etc.

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O que é nostr?

Nostr é algo novo e confuso, mas ao mesmo tempo é algo muito legal. Nostr é o protocolo aberto mais simples que é capaz de criar uma rede social global que é resistente a censuras de uma vez por todas.

Footnotes

1. nostr = Notes and Other Stuff Transmitted by Relays ↩

metasikander

This is a very basic guide, just to understand what's needed to set it up.
If you have any questions you can find me at https://nostr.com/8355095016fddbe31fcf1453b26f613553e9758cf2263e190eac8fd96a3d3de9

Prerequisite

• a webserver with a domain under your control
• nostr account with private and public key setup on https://nostr.com, preferably set up with nos2x: https://github.com/fiatjaf/nos2x

Setup static file on server

Create a file that resolves to <domain>/.well-known/nostr.json, and fill it out like this (enter the name you want to use, and input your own public key, make sure its the HEX-key):

{

rdeavila

#!/bin/bash
# Adicione um novo remote; pode chamá-lo de "upstream":

git remote add upstream https://github.com/usuario/projeto.git

# Obtenha todos os branches deste novo remote,
# como o upstream/master por exemplo:

git fetch upstream

num3ric

import numpy as np

def GENP(A, b):
    '''
    Gaussian elimination with no pivoting.
    % input: A is an n x n nonsingular matrix
    %        b is an n x 1 vector
    % output: x is the solution of Ax=b.
    % post-condition: A and b have been modified. 
    '''

leandrogualter

public class ArvoreBinaria {
    private No raiz;
    private ArvoreBinaria arvoreEsquerda;
    private ArvoreBinaria arvoreDireita;

    public ArvoreBinaria() { }

    public ArvoreBinaria getArvoreDireita() {
        return arvoreDireita;
    }