Volker Mische vmx

Transfer from multisigs on Filecoin with a Ledger and Lotus

I'd like to thank @ribasushi for helping figuring all this out.

git clone https://github.com/filecoin-project/lotus

cd lotus

The following is a translation into a Python-like pseudo code, where I add the Go functions to call as comments.

def encode(key_bytes, value_bytes):
 '''`key_bytes` and `value_bytes` are each 32 bytes long.

This is the pseudocode on how the labelling in PC1 works. It's for the 32GiB sector size production parameters.

Glossary:

node: A "node" refers to a 256-bit (32 bytes) value of the padded input data. A 32 GiB sector as 1m nodes.
label: A "label" refers to a 256-bit (32 bytes) value of one of the layers. It's the result of hashing the node index, layer index, replica ID and multiple labels together.

Inputs:

parent_file: That's a pre-generated file (it's fixed and the same for everyone) that contains a list of random 32-bit integers that are used as offsets to read from a file.
padded_data: A 32GiB file that has the padding already applied. "Padding" in this case means that each 0th and 1st bit is zero. It could be validated as:

title

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IPLD Shallow Dive

IPLD, Launchpad

Launchpad V8 presentaiton 2023-01-18

width	theme
1280	blood

I'm opening a new Firefox window
I'm going to https://staging.wiki.osgeo.org/
I click on Log in on top right corner, which gets me to https://staging.wiki.osgeo.org/w/index.php?title=Special:UserLogin&returnto=Main+Page
It redirects to https://staging.wiki.osgeo.org/wiki/Main_Page
(BTW: It's 2022-05-23 9:54 CEST)
I enter:
- Username: Vmische
- Password: :)
- Keep me logged in: No
I press "Log in" which gets me to https://staging.wiki.osgeo.org/w/index.php?title=Special:WikiUserMerge&returnto=Main_Page

	#!/usr/bin/env python3

	# SPDX-License-Identifier: MIT

	# Override every 32 byte with a zero. The input file is modified!
	#
	# Start e.g. with a file with random bytes:
	#
	# dd if=/dev/urandom of=/tmp/random.dat count=1 bs=1MiB
	#

	package main

	import (
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"github.com/consensys/gnark-crypto/ecc/bls12-381/fr"
	)

	#!/bin/sh

	# `OUT_DIR` determines where to put the files generated by this script.
	# The default directory is `/tmp/lotusbenchdata`
	${OUT_DIR:=/tmp/lotusbenchdata}
	mkdir -p "${OUT_DIR}"

	# Create unsealed sector file
	./lotus-bench simple addpiece --sector-size 2K /dev/zero "${OUT_DIR}/unsealed"
	# Run PreCommit1

	# SPDX-License-Identifier: MIT
	#
	# Takes a file and indents at `(` and `[`.
	import sys


	def main(argv=None):
	if argv is None:
	argv = sys.argv