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#!/usr/bin/env python3

import bitarray
from hashlib import blake2b

# POW Constants
BASE_EDGE_BITS = 24
PROOFSIZE = 42;

# https://github.com/mimblewimble/grin/blob/cccaf984936d4792f8b6c39e6b500ad2e3f08817/core/src/pow/types.rs#L314

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--------------------------------------------
- Format 2 NVMe SSD Drives
--------------------------------------------
NOTE: NVMe SSD Drives are Ephemeral! Data will
survive hard and soft reboots, but not stop/start 
cycles via the AWS Console.
sudo fdisk -l|more
sudo fdisk /dev/nvme0n1
n
p

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Notes on setting up Eth2 clients for Medalla testnet (Prysm / Lighthouse / Teku / Nimbus / Lodestar)

PLEASE NOTE:

• Prysm, Lighthouse, and Teku are attesting and proposing correctly following this guide
• Nimbus currently has a glitch that it syncs the beacon chain well but can't post any attestations. An issue has been created: #1443
• Lodestar also has a glitch that the beacon client hangs up and won't sync the beacon chain
• This guide will be updated once these issues have been resolved

Using the launchpad

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BLS Signature for Busy People

Summary

• BLS stands for

  • Barreto-Lynn-Scott: BLS12, a Pairing Friendly Elliptic Curve.
  • Boneh-Lynn-Shacham: A Signature Scheme.

• Signature Aggregation

• It is possible to verify n aggregate signatures on the same message with just 2 pairings instead of n+1.

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BLS Signature for Busy People

Summary

• BLS stands for

  • Barreto-Lynn-Scott: BLS12, a Pairing Friendly Elliptic Curve.
  • Boneh-Lynn-Shacham: A Signature Scheme.

• Signature Aggregation

• It is possible to verify n aggregate signatures on the same message with just 2 pairings instead of n+1.

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import sys
from decimal import Decimal
from datetime import datetime

try:
    import requests
    import simplejson as json

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How to set up web3.js with CRNA

This is a simple guide to get you started with using the Ethereum Javascript API (web3.js) with the Create React Native App project. This is not an in-depth guide.

1. Make sure you have Node version 6 or later installed, if not, get it on the Node website

   node --version

2. Install Create React Native App

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How to set up web3.js with CRNA

This is a simple guide to get you started with using the Ethereum Javascript API (web3.js) with the Create React Native App project. This is not an in-depth guide.

1. Make sure you have Node version 6 or later installed, if not, get it on the Node website

   node --version

2. Install Create React Native App

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How to set up web3.js with CRNA

This is a simple guide to get you started with using the Ethereum Javascript API (web3.js) with the Create React Native App project. This is not an in-depth guide.

1. Make sure you have Node version 6 or later installed, if not, get it on the Node website

   node --version

2. Install Create React Native App

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#GATK Method <- Slower and keeps original ID plut dbSNP rsID
# R=Reference FASTA
# V=VCF file to add IDs to
# --dbsnp = dbsnp VCF -- download from NCBI FTP

java -jar GenomeAnalysisTK.jar -R /reference/Homo_sapiens_assembly19.fasta -T VariantAnnotator -V vcf_to_add_id_to.vcf --dbsnp /reference/dbsnp_137.b37.vcf.gz --out /data/Broad.chr1.annotated.vcf

#bcftools Method <- Faster, replaces existing ID with dbSNP rsID
/usr/bin/htslib/bcftools/bcftools annotate -a /reference/dbsnp_137.b37.vcf.gz -c ID vcf_to_add_id_to.vcf