chris-belcher

JoinMarket yield generators earn money on an unpredictable basis. It's worth calculating
the equivalent interest rate as if joinmarket was a savings account.

We can make a model of a bank account that takes deposits and withdrawals at any time and
where the balance accumulates interest, then the parameters from a JoinMarket yield-generator
wallet can be inputted to obtain the equivalent interest rate.

We know that the present value of a bank account (P) grows to the future value (F) determined
by the interest rate per unit time (r) and time (t)
https://en.wikipedia.org/wiki/Compound_interest#Mathematics_of_interest_rates

chris-belcher

hey cypherpunks, it's the end of the old regime
cryptographic currency, no longer a dream

oh believers in liberty, feel the new sunrise
trustworthy coinage is right before our eyes


it's time to remember the early pioneers
ten thousand coins for a pizza, they look back in tears

chris-belcher

#irc script which sends its own pings without creating any other threads

import socket, random
from datetime import datetime

nick = 'testbot-' + hex(random.randint(0, 0xffffff))[2:]
hostport = ('irc.snoonet.org', 6667)
ping_interval_seconds = 30
ping_timeout_seconds = 60

chris-belcher

https://bitcoin.stackexchange.com/questions/29948/why-doc-says-importing-private-keys-is-so-dangerous

https://bitcoin.stackexchange.com/questions/18619/why-so-many-warnings-about-importing-private-keys

behave un-intuatively

'giving' a key to someone still means you have it

change addresses / paper wallets

chris-belcher

#Can override these defaults per-section.
[DEFAULT]
#Twisted's default is 30 seconds.
timeout=180
port=6697
#A single channel to join, or a list of channels: #a-bridged-channel,#some-other-channel
channels=#joinmarket
nick=JoinMarketRelay
#Can change to allow more specialized behavior.
username=jmrelay

chris-belcher

In cryptoland, cypherpunks get clever
Belief in freedom switches off never

So long as nodes are run, bitcoin stays untorn
Six an hour, new blocks are born

To honest miners, new coins are bestow
Going above 21 million is a no

[chorus x2]

chris-belcher

#run with
#/path/to/bitcoin/bin/bitcoin-cli getpeerinfo | python getpeerinfo-parse.py

#output looks like
#zlato@zlato:~/bitcoin-0.17.1/bin$ ./bitcoin-cli getpeerinfo | python getpeerinfo-parse.py
#services L=NODE_NETWORK_LIMITED N=NODE_NETWORK G=NODE_GETUTXO B=NODE_BLOOM R=NODE_REPLACE_BY_FEE W=NODE_WITNESS X=NODE_XTHIN U=UNKNOWN
#    id                   addr user-agent                                               iB   se   re    conn'd ping  serv  lastr
#     #                   host                                                          oO   nt   cv MMDD-HHMM msec  ices HHMMSS
#   414          27.102.130.92 /Satoshi:0.17.1/                                         oF  20M  28M 0411-2005  358  LNBW 121021
#   417          139.59.34.217 /Satoshi:0.15.1/                                         oF  17M  46M 0411-2006  163   NBW 121019

chris-belcher

import matplotlib
import numpy.random
import matplotlib.pyplot as plt
from matplotlib.ticker import FuncFormatter

#https://www.reddit.com/r/Bitcoin/comments/4gp28d/how_to_avoid_getting_ripped_off_in_large_btc/
#https://en.bitcoin.it/wiki/Confirmation

cumulative = True

chris-belcher

#jsonrpc.py from https://github.com/JoinMarket-Org/joinmarket/blob/master/joinmarket/jsonrpc.py
#copyright # Copyright (C) 2013,2015 by Daniel Kraft <d@domob.eu> and phelix / blockchained.com

import base64
import httplib
import json

class JsonRpcError(Exception):
    def __init__(self, obj):
        self.code = obj["code"]

chris-belcher

#! /usr/bin/python3

##this file calculates the success probability of a sybil attack on the
# orderbook with fidelity bonds used in joinmarket
# see https://gist.github.com/chris-belcher/87ebbcbb639686057a389acb9ab3e25b

from scipy.optimize import brentq
from time import time
from datetime import timedelta