dhruv

## stealth.md

      
              1 file
            
          
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                ryanxcharles
                / stealth.md
            
            
              Last active
              June 14, 2023 13:35
            
              
                Stealth Addresses, Transactions and Messages
              
          
    Stealth Addresses, Transactions and Messages

Normal bitcoin addresses cannot be published in public without losing all privacy, since all transactions to that address can be seen by anybody. Stealth addresses let us publish an address in public which can be used by payers to derive a new address that the payee has access to, but no one else knows is associated with the stealth address. The trick is that the payer must use a nonce to derive the address paid to, and this nonce must be delivered to the payee so they know how to recover the funds. This nonce can be delivered in the transaction, so that no separate channel is required to communicate the nonce.
The same technology can also be used to construct new public keys to send encrypted messages to.
We will discuss four methods:

The simplest form of stealth addresses, which has some drawbacks that can improved upon.


## python_conversion.md

      
              1 file
            
          
              39 forks
            
          
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              250 stars
            
          
                Nurdok
                / python_conversion.md
            
            
              Last active
              December 16, 2022 03:45
            
              
                Python Conversion
              
          
    Python Number Conversion Chart


From
To
Expression

  
## BIPoverhaul.mediawiki

      
              1 file
            
          
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                jonasschnelli
                / BIPoverhaul.mediawiki
            
            
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              November 14, 2022 13:22
            
          
  BIP&#58; 324
  Layer&#58; Peer Services
  Title&#58; Version 2 Peer&#45;to&#45;Peer Message Transport Protocol
  Author&#58; Jonas Schnelli <dev@jonasschnelli.ch>
          Dhruv Mehta <dhruvkaran@pm.me>
  Status&#58; Draft
  Type&#58; Standards Track
  Created&#58; 2019&#45;03&#45;08
  License&#58; PD


## csrf-lua.conf

server {
    listen 80;
	root /root/to/your/docroot;

	proxy_redirect off;
	proxy_intercept_errors on;
	proxy_set_header Host $host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

## softpeg.md

      
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                fernandonm
                / softpeg.md
            
            
              Last active
              November 25, 2021 17:35
            
              
                Soft pegged sidechains
              
          
    Soft pegged sidechains

Sidechains have been the Holy Grail to scale and try new features on Bitcoin for a long time. But the trade-offs of the different proposals relying on Bitcoin modifications (SPV two-way peg, drivechains, etc) prevented them from being adopted.
Only proposals not requiring of any change to Bitcoin, like federated sidechains (e.g. Liquid Network), have seen some adpotion. Although they imply significant trust requirements.
I have always found in sidechains the most honest way to explore other applications of Bitcoin technology. E.g. Namecoin, a network with greater privacy, a distributed oracle, or a network with different trade-offs for high velocity money (low fees), etc. So I have tried (in multiple ocasions) to figure out a trust minimized solution for the two way peg problem that did not require changes to Bitcoin.
[Statechains](https://medium.com/@RubenSomsen/statechain

  
## vim.sh
# Remove previous installations
sudo apt-get remove vim vim-runtime vim-tiny vim-common

# Install dependencies
sudo apt-get install libncurses5-dev python-dev liblua5.3-dev lua5.3 python3-dev

# Fix liblua paths
# You have to compile luajit for yourself.
sudo ln -s /usr/include/lua5.3 /usr/include/lua
sudo ln -s /usr/lib/x86_64-linux-gnu/liblua5.3.so /usr/local/lib/liblua.so

## README.md

      
              1 file
            
          
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                kristovatlas
                / README.md
            
            
              Created
              April 16, 2018 01:22
            
              
                How to verify Trezor Bridge on MacOS (and maybe other operating systems)
              
          
    Background reading


https://www.reddit.com/r/TREZOR/comments/2otibh/how_to_install_bitcoin_trezor_bridge/
https://blog.trezor.io/introducing-new-trezor-bridge-v2-2b7ea5478d65


Verification Steps


Visit https://wallet.trezor.io/data/bridge/latest/index.html. For MacOS, you download a .pkg file.
From https://wallet.trezor.io/data/bridge/latest/index.html also download the PGP signature file.
The Satoshi Labs CTO signs the Bridge releases. Download his PGP key from his Keybase signature: https://keybase.io/stick This means at least that someone created an account with his identity and bothered to link a specific PGP key. If you retain this key over time, you can be sure that it wasn't recently swapped out. You can find same PGP under his identity in various places on the web: https://duckduckgo.com/?q=Pavol+Rusn%C3%A1k+pgp+key&ia=web


## svmflag.py
import numpy as np
import pylab as pl
import pandas as pd

from sklearn import svm
from sklearn import linear_model
from sklearn import tree

from sklearn.metrics import confusion_matrix

## cows_and_wolves.txt
  o		o		o
	o		 	x
o			x	x	x
			x			o
			x	x	x	o
		x
				o		o
		o


## enum_int_type.py
import sqlalchemy as sa

class EnumIntType(sa.types.TypeDecorator):
    impl = sa.types.SmallInteger

    values = None

    def __init__(self, values=None):
        sa.types.TypeDecorator.__init__(self)
        self.values = values

	server {
	listen 80;
	root /root/to/your/docroot;

	proxy_redirect off;
	proxy_intercept_errors on;
	proxy_set_header Host $host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	# Remove previous installations
	sudo apt-get remove vim vim-runtime vim-tiny vim-common

	# Install dependencies
	sudo apt-get install libncurses5-dev python-dev liblua5.3-dev lua5.3 python3-dev

	# Fix liblua paths
	# You have to compile luajit for yourself.
	sudo ln -s /usr/include/lua5.3 /usr/include/lua
	sudo ln -s /usr/lib/x86_64-linux-gnu/liblua5.3.so /usr/local/lib/liblua.so
	import numpy as np
	import pylab as pl
	import pandas as pd

	from sklearn import svm
	from sklearn import linear_model
	from sklearn import tree

	from sklearn.metrics import confusion_matrix
	import sqlalchemy as sa

	class EnumIntType(sa.types.TypeDecorator):
	impl = sa.types.SmallInteger

	values = None

	def __init__(self, values=None):
	sa.types.TypeDecorator.__init__(self)
	self.values = values