Introduction
I was searching for a tool to check my unspent outputs on all different altcoins that recently forked from bitcoin at a certain heigh, and whose unspent outputs could be spent by using my private keys... I found several tools, like https://github.com/foozzi/bitcoin-fork-checker, but i found them either lacking basic functionality, unmaintained or lacking a lot of the current forks. This is why i decided to write my own script.

Prereqs
If you want to run the script, i recommend:

• Linux
• python 2.7
• pip
• pip modules sys, argparse, requests, base58, time, urllib, urllib3, json, tqdm, signal and cfscrape
• git

How to install the script

• git clone https://github.com/mocacinno/mocacinnoforkchecker
• cd mocacinnoforkchecker
• pip install argparse requests base58 urllib urllib3 json tqdm cfscrape
• python checker.py --help

How to run the binary on linux

• visit the releases-page: https://github.com/mocacinno/mocacinnoforkchecker/releases
• download the latest release AND detached signature file (curl https://keybase.io/mocacinno/pgp_keys.asc | gpg --import && gpg --verify forkchecker_v0.2_compiledwithnuitka.tar.gz.asc forkchecker_v0.2_compiledwithnuitka.tar.gz)
• check the signature
• tar -xvf filename.tar.gz
• ./checker --help

Parameters

parameter	mandatory?	explanation
address	yes*	check one single address
addressfile	yes*	check all addresses in this ascii file
fork	no	only check this fork
help	no	prints help about the parameters and exits
maximumstatus	no	only check forks with a status <= this parameter
outfile	no	print the output to this outfile
secperrequest	no	number of seconds to wait for a reply from the fork's block explorer. This number must be bigger than the (optional) timeout
showforks	no	show a list of supported forks and exit
skipbtc	no	do not check for unspent outputs on the original bitcoin chain
timeout	no	set the sleep() time to x seconds (default:3)
verbose	no	write all output to stdout, disables the progress bar

* either the address OR the addressfile parameter have to be used... This is the only mandatory parameter. If you use BOTH the address AND the addressfile, a union will be executed, duplicate lines will be checked twice

examples

python checker.py --address 1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa

check for unspent outputs on ALL supported chains, also print out which explorers need to be queried manually, and which coins don't have an explorer (but might still be worth something)

python checker.py --addressfile myaddresses.txt --timeout 6 --maximumstatus 1 --outfile log.log

check all addresses found in the newline seperated ascii file myaddresses.txt (you can add comments by starting a line with #). The timeout between 2 queries needs to be 6 seconds, and only forks that can be checked 100% automatically need to be queried. The output needs to be written to the file log.log

Adding your own fork to the script
If you have your own fork, you can quickly fork this script, add your own parameters to it, then generate a pull request... Or you can take the lazy approach and create a ticket containing the following information:

1. The name of your coin
2. The ticker symbol
3. Where i can find the sourcecode
4. Where i can find a block explorer that has a public api
5. Where i can find an exchange that is listing your coin and has a public api
6. Your project's homepage

In order to add your coin to the script yourself, just add 1 line to the available_forks-dictionary, and add a function at the bottom of the script (you can copy an existing function and adapt it to your situation). Basically, adding a coin is adding 4 or 5 lines to the script (pretty easy huh ;) )

warnings!
Some of these coins don't have replay protection, some of these coins might only distribute binary wallets (or have open source wallets that weren't toroughly vetted by a competent community member). The first case can result in transactions being replaying on unintended chains, the second case can result in backdoors or bugs exposing your private keys to either the makers of the coin, or hackers exploiting the wallets... Always empty out your bitcoin wallet before attempting to import the private keys into wallets belonging to forked chains... Also try to claim the forks in order of importance (the most expensive forks first, the least expensive forks last)

tipjar(s)
Since you can now claim a lot of coins on a lot of forks, you're in the ability to send me a tip (if you'd like)

coin	address
BTC	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BTC (segwit)	3NMoA9R6dNDxV3dmnRRFqC44cW1PaDg5hs
BCH	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BPA	PVPnKB7MPGcnXcoaYvsGdzsZSodvJaXbzT
WBTC	WjUe38UYAWxZFRK8zUs1NFmimtGu5GjTFi
BTV	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BCI	iQH8bH7tkkPxxzMeheXFRtfY2WkFfigvu8
SBTC	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BICC	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BTX	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
B2X	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BCHC	1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa
BCX	XY9r1M57astJtHbK3KXeLWKJ2tnnVUrZ2V
BTG	GeeXaL3TKCjtdFS78oCrPsFBkEFt9fxuZF
BCP	CdGVjF4aDQ78Sv3EtbsfYcXKTBgT5zQEX4
CDY	CdGVjF4aDQ78Sv3EtbsfYcXKTBgT5zQEX4

credits/sources https://github.com/mocacinno/bitcoin_fork_claimer/
https://github.com/foozzi/bitcoin-fork-checker
https://bitcointalk.org/index.php?topic=2749969.0
https://en.bitcoin.it/wiki/List_of_address_prefixes
http://list.wiki/Bitcoin_Hard_Forks