nyuuzyou/wikis huggingface dataset:
Slush Pool

Slush Pool, also formerly known as Bitcoin.cz Mining, is the oldest mining pool, and the first known to be publicly available. Slush Pool was announced on November, 27, 2010 under the name Bitcoin Pooled Mining Server and operated on a share strategy that involved an artificially low difficulty method that has since been determined to be vulnerable to cheating. The pool now follows a score-based method, where older shares (from beginning of the round) have a lower value than newer shares, which serves to demotivate a cheater from switching between pools inside a round. Balances accumulate on the server, and are sent out when a user-set threshold balance is reached. There is a fixed fee of 2%, as of December 10, 2017Slush Pool: Terms of service.
The coinbase signature for this pool is: "/slush/" Example of decoded coinbase.
==See Also==
* Comparison of mining pools
* Pooled mining
==External Links==
* Slush Pool Official website
* Bitcoin Mining
* Video: What is Bitcoin Mining
==References==
Category:Pool Operators
Category:Mining pools
Softfork wishlist

The Softfork Wishlist is to record changes to Bitcoin that might be desirable, but that will require a "soft" block-chain split (consensus of the miners). These changes are implemented by convincing a majority of the miners to reject or discourage blocks that were previously considered valid. This is often combined with a special form of pay-to-anybody transaction, which is declared to have a new meaning. Old clients will see the new transaction types as a pay-to-anybody, but attempts to "steal" these pay-to-anybody outputs without using the new transaction type will be refused by the miners and all upgraded clients.
This page is not for changes that require a "hard" block-chain split (everybody must upgrade, old software will not accept blocks/transactions created with the new rules, considering them to be invalid blocks). See Hardfork_Wishlist.
== Block format ==
* Require a UTXO tree in every block
== New Transaction Types ==
* Pay-to-SNARK (aka CoinWitness). This allows payment to a user who can produce cryptographic evidence that they ran a certain (time-bounded) program on a certain input argument. The size of the cryptographic evidence is linear in the input argument but constant with respect to the size and running time of the program, so bounding the size of the input argument bounds the size of the data that needs to be put into the blockchain. Unfortunately the time+space constant factors are, with current algorithms, rather large.
== Cryptographic changes==
* Pervasive ECC public key-recovery to reduce transaction sizes (can be done partially without breaking compatibility completely)
* Support for more than one public-key cryptosystem (ECDSA-k1) and key size (256bits) as a hedge against future cryptanalysis or designed-in flaws in any one algorithm. Every node must support validation of signatures with every cryptosystem, but a small number of very-cryptograpically-diverse options is still better than just one. Additional signature types could be kludged into the existing system with script extensions but would be better supported natively.
* Support for a post-quantum signature scheme. Lamport signatures have nice intuitive security properties, but it has extreme space requirements that would require structural changes to the blockchain to accommodate, (e.g. flip-chain+paytoscripthash+extensive pruning). However other post-quantum schemes like IEEE1363.1 (patent expires in 2016) do not. See the introductory chapter of DJB's book and the PQCrypto conference webpage for full details.
Software versions

Software 	Vulnerable 	Old 	Current
Bitcoin-Qtbitcoind	* - 0.4.9rc10.5.0rc1 - 0.5.8rc10.6.0rc1 - 0.6.5rc10.7.0rc1 - 0.7.3rc10.8.0rc1 - 0.8.0	0.4.9rc20.5.8rc20.6.5rc20.7.3rc2 	0.4.9rc20.5.8rc30.6.5rc30.7.3rc30.8.1
Bits of Proof 	 	0.9 	1.0
Solo.ckpool

:This article is about the mining pool. For other uses, see Ckpool (disambiguation).
solo.ckpool.org is a mining pool that doesn't divide the reward among other participants.
Despite its deceptive name, it is *not* the same thing as solo mining.
solo.ckpool was started on the 31. August 2014 (∞ YH) solo.ckpool.org 0.5% fee anonymous bitcoin and free testnet mining!. For developers there is also a testnet implementation available.
Pool code created and operated by Con Kolivas, creator of cgminer and ckpool.
== Servers to use ==
* Stratum - Use for ALL stratum capable Bitcoin mining software
 stratum+tcp://solo.ckpool.org:3333
 stratum+tcp://solo.ckpool.org:4334
Miners closer to Europe please use one of:
 stratum+tcp://eusolo.ckpool.org:3333
 stratum+tcp://eusolo.ckpool.org:4334
If you use an incompatible rental service that refuses to work on port 3333 try the following:
 stratum+tcp://solo.ckpool.org:4334
If you have an asicminer tube/prisma, you can use a custom port 3335 (only accepts usernames without worker extensions) eg:
 stratum+tcp://solo.ckpool.org:3335 (outdated)
Set your username to your btcaddress with any or even no worker extension, and any password.
* Testnet
 stratum+tcp://testnet.ckpool.org:3333 (outdated)
Note this is mining worthless testnet coins only! Also, you must be using a testnet bitcoin address on this edition.
==Reward distribution==
* If you find a block, 98% of the 3.125 BTC + transaction fees get generated directly at your bitcoin address.
* 2% goes to the operator to operate the pool and contribute to further ckpool code development.
For testnet (offline):
* If you find a block, 100% of the testnet coins + transaction fees get generated directly at your bitcoin address.
==Extra features==
* No overheads of running a full bitcoin node
* Connected to high speed low latency bitcoin nodes for rapid block change notification and propagation.
* No transaction-free blocks due to the ultra-scaleable code which has miners on both new blocks and transactions concurrently.
* No registration required, no payment schemes, no pool operator wallets
* The miner remains anonymous apart from his BTC address.
==How to run miners ==
CGMiner Forum
cgminer -o stratum+tcp://solo.ckpool.org:3333 -u 1YOUROWNBITCOINADDRESS.0 -p x
If you enter an invalid address you will be rejected.
==See also==
* Comparison of mining pools
* Pooled Mining
==External links==
* solo.ckpool web site
* eusolo.ckpool solockpool EU node
* solo.ckpool testnet web site (offline)
==References==
Category:Pool Operators
Spam transactions

Spam transactions are transactions which create undesirable extra load on the network due to not following Bitcoin best practices, either maliciously or out of ignorance. Even the very first versions of the Bitcoin software had some spam filtering rules, and these have been improved over time, but it is probably impossible to automatically filter all spam.
Transaction spam is always more costly to the spammer than not spamming. Someone who is intentionally spamming the network will have to burn BTC constantly to do so, and so will eventually be forced to stop.
The most common types of spam are:__NOTOC__
==== Sending many without sendmany ====
If you want to send payments to many people at around the same time, then you should not do tons of individual transactions one after the other. Doing so is grossly wasteful of network resources because each transactions produces a extraneous change output. Instead, all of the outgoing transactions should be bundled into one transaction. The bitcoind JSON-RPC command for doing this is sendmany.
==== Signalling and data transmission ====
Bitcoin is for storing & transferring value between people, and for limited hash-based timestamping. Transactions should never be used as a signal (such as a win/loss signal in a gambling game) or to send data directly.
==== Useless transactions ====
Attackers will sometimes waste network resources by sending BTC between their own addresses uselessly.
==== Very-low-fee flooding ====
A simplistic attack that people often try is to send tens of thousands of zero- or very-low-fee transactions at once. This makes the "mempool" number shown by some websites go up massively, which sometimes causes people to panic, but in reality it is only a slight drain on the network's bandwidth resources, and hardly a problem at all. Transactions with very low fees will never be confirmed, and will typically be expired from nodes' mempools after a few days.
Category:Vocabulary
Sparrow Wallet

Sparrow Wallet is a Bitcoin wallet designed to provide maximum security and transparency for its users. It offers advanced features and is geared towards users who prioritize control over their Bitcoin transactions and storage.
Sparrow Wallet is available for Windows, macOS, and Linux and integrates with various hardware wallets.
==Features==
* Advanced coin control
* Full-node support
* Tor support for enhanced privacy
* Multi-signature wallet support
* Hardware wallet integration
* Labeling and transaction notes
* Free and open source (MIT license)
* Localized in various languages
Sparrow wallet can also connect to different kinds of nodes to improve wallet privacy. The default is to connect to public servers, but you can change it to connect to your own Bitcoin node or private Electrum server. Instructions for doing so can be found here. Sparrow Wallet supports many different address and script type, as well as many other features that provide fine-grained control over Bitcoin wallets.
==See Also==
* Bitcoin Wallet
* Hardware wallet
==External Links==
* Sparrow Wallet GitHub repo
* Official Sparrow Wallet Website
==References==
Category:Clients
Category:Open Source
Category:Bitcoin
Category:Cryptocurrency
Spend Bitcoins

A service that provides exchange allowing bitcoins to be purchased or to be spent through a variety of methods to cash out.
==Buy==
===AUD===
* Cash deposit at NAB, Commonwealth Bank, Westpac and ANZ.
==Sell==
* Online Payments Service (You provide the URL, Spend Bitcoins will make the payment)
* Bank transfer (AUD) to NAB, Commonwealth Bank, Westpac and ANZ.
* International bank wire transfer
* AustPost reloadable VISA (AUD)
* Bill Payment (Australian bill payment services)
===Gift cards===
====eCode Card====
* Fishpond (AUD)
====Physical Card====
* Coles Myer Group (redeemable at Coles Myer stores and others, in AUDs)
==History==
The service was launched on May 18, 2011Spend your bitcoins on amazon with no transaction fees. Also sometimes referenced as SpendBitcoins.
On August 7th, 2012, the service stopped support for U.S. retailers, citing the costs due to regulatory obstaclesSpend Bitcoins out of the US market - Australia only for now.
==See Also==
* Selling bitcoins
* Buying bitcoins
==External Links==
* SpendBitcoins.com web site
==References==
Category:Services
Category:Exchanges
Spendbitcoins.com

SpendBitcoins.com is a website which provides its users with information about where they can spend their bitcoins. Though the website is still live (as of mid-2020), it appears to have been all but abandoned; many, if not most, of the businesses that it references are defunct, and it includes many broken links.
Some alternative services which appear to be better-maintained include Spendabit, which also acts as a product search engine for Bitcoin-enabled businesses, and Spending-Bitcoin.com.
== Mission ==
The SpendBitcoins team claims to be completely dedicated to Bitcoin. They are "committed to bringing bitcoin to your daily life as well, by making bitcoin as easy and comfortable as slipping into a pair of old jeans" as said on their own website.
The project's goal is to allow anyone, anywhere, anytime to be able to buy and use bitcoins as easily as using cash, or even easier because of digital nature of Bitcoin, which cash does not possess.
In addition to gathering and systemizing info about services that accept Bitcoin, the SpendBitcoins also provides a one-click option of buying the coins and a "superb-quality" customer service.
== History ==
Spend Bitcoins was started by Jeremy West in 2011 when he realized how difficult bitcoins were to buy in Australia. He gathered his dedicated companions to build Spend Bitcoins into the strong, stable and reliable service that it is now.
== See also ==
* Bitcoin
* Buying Bitcoin
* Trade
== External links ==
SpendBitcoins
Spesmilo

Python-based RPC front-end for bitcoind/Bitcoin-Qt, which is no longer maintained or active. Reported to be broken as-of bitcoind version 0.6.
Principal authors: genjix and Luke-Jr
==Features==
* Multilingual: American, Dutch, English, Esperanto, or French.
* Supports both Decimal and Tonal Bitcoins (and autodetection)
* Supports bitcoin: URIs
* Can connect to remote JSON-RPC
* Can run local "embedded" bitcoind
==Current version (0.0.1.beta1)==
* Windows installer -- Requires Administrator to install or you will get an error
* Source code
===Gentoo install===
 layman -o https://gitorious.org/bitcoin/gentoo/blobs/raw/master/overlay.xml -f -a bitcoin
 emerge -a spesmilo #(you may need to keyword some packages)
===Quick start (from source)===
 # Dependencies: PySide, ImageMagick
 make local
 make
 ./spesmilo
To install:
 make install
To install with bitcoin: URI support for KDE:
 make install KDESERVICEDIR="/usr/share/kde4/services"
:Spesmilo-tonal.png|Tonal preference
:Spesmilo-decimal.png|Decimal preference
==External Links==
* Forum thread
* Gitorious repository
Category:User Interfaces
Category:Frontends
Category:Free Software
Category:License/GPLv3
Category:Open Source
Category:Mobile
Category:Defunct products or services
Split-key vanity address

A split-key vanity address is a type of vanity address generated from one or more ECDSA private keys. The general use case is when a user generates a key-pair and only shares his public key. Everybody can use this public key to find the complementary public key leading to a vanity address. The user can than merge his private key with the complementary private key, leading to the private key of the vanity address. The security of such solution is guaranteed by the properties of the Elliptic Curve Cryptography .
== Address generation ==
A split-key vanity address is generated by a specialized software, called a generator. One such sample generator is available as a part of the Vanitygen program suite. Bitaddress can be used for this purpose as well as explained in this video
== Address merging ==
In order to create a usable vanity address, one needs to merge two or more private keys. This can be done with specialized software, such as the GoBit Testing Suite. Another option is using the Vanity Wallet tool of Bitaddress, but bitaddress only supports legacy addresses, whereas the keymerging tool of Bitcoin-Uni supports P2SH & Bech32 native Segwit as well. An offline keymerging tool called VanityAddressMerger is available from Github VanityAddressMerger, this tool supports all mainnet address types. It is recommended to use these tools offline in an incognito browser, while merging partial keys, to get the final private key secure.
== Address generation outsourcing ==
Generating a split-key vanity address can be outsourced to a third party miner without risking your final private key being compromised. Moreover, work on such address generation can be distributed to many miners simultaneously through a use of a pooling service. One example of such a service is Vanity Pool.
Other options for outsourcing vanity address generation include Bitcoin-Uni, Coin Dance Vanity and Vante. These services generate keys on an on-demand basis.
== Address generation fees ==
For outsourcing the finding of vanity addresses, users got to pay fees for the Hardware and ernergy consumtion. The pricing of the services are verry different. Some of them do not update the Bitcoin prices.
== See also == 
* Vanitygen - a software suite offering an Open-CL split-key vanity address generator
* Reddit post - Discussion on split-key address generation
Category:Vanity address
Category:Software
Category:Mining - Other
StartJOIN

StartJOIN is a social crowd funding technology platform.
== History ==
StartJOIN launched in Februrary 2014 in London. Being born in the digital space, StartJOIN aims to power progression. StartJOIN accepts cryptocurrency, such as Bitcoin and thus is a platform that is open to new ways of backing a project people believe in, and that means that projects get funded faster.
== Features ==
StartJOIN knows that it may take some time for a project to develop from an idea, which is why it offers separate “Concept” and "Project" stages where one can showcase their idea at different stages of development, and get community feedback and support throughout
In contrast to traditional crowd funding which is about a lot of people pledging small amounts of money for the collective growth of a project, StartJOIN offers a more complex system: a platform that gives users the chance to grow an idea from the conceptual stage through to a funded project.
Sometimes money isn't the only concern: people can offer skills and feedback to help develop an idea. StartJOIN is a social network, so it provides an opportunity to keep up with one's friends, influencers and the projects user is interested in.
== See also ==
* Cryptocurrencies popularisation
== References ==
: StartJOIN home page
StateChain

StateChains are a cryptographic structure that consists of a chain of digital signatures transfering ownership of a specific statecoin (a bitcoin UTO) between owners. Similar to a blockchain or sidechain, the statechain acts as immutable cryptographic proof of ownership and a proof that a statecoin(bitcoin UTXO) has not been double spent.
In of February 2022, MercuryWallet was the first implementation has been deployed.
== External links ==
* https://medium.com/@RubenSomsen/statechains-non-custodial-off-chain-bitcoin-transfer-1ae4845a4a39
* https://github.com/commerceblock/mercury
* https://www.mercurywallet.com/
Category:Privacy
Stealthcoin

An installation wrapper for a modified Bitcoind CPU miner. This software will run the miner at a level such that use of the computer can continue without impact from having the CPU miner running at the same time.
A scenario where this software might be useful is to have the system in a computer lab use idle time for mining.
This software was announced on April 17, 2011Stealthcoin.
==Criticism==
If the name Stealthcoin doesn't describe another use for this software, consider an alternate name: "Bitcoin - Botnet Edition".
Kaspersky Internet Security 11.0.1.400 identifies the editor.exe as beeing infected with Trojan.Win32.Scar.dzmz.
==See Also==
* Original Bitcoin client
==External Links==
* Stealthcoin project on GitHub
==References==
Category:Distributed Miners
Stratum

Stratum is a proposal for an open source client-server "overlay" protocol that enables thin clients.
It is currently used by Electrum.
While originally announced right before 2012Original stratum protocol announcement on BitcoinTalk, the protocol has not yet been completed and proposed as a BIP for standardisation.
==Mining extensions==
Main page: Stratum mining protocol
In addition to its use for bitcoin wallets, the stratum protocol is also in common use with mining extensions.
==References==
StrongCoin

This is a browser-wallet where the key-information is stored in the browser and can be accessed via JavaScript.
StrongCoin accounts are protected by a passphrase that is known only to the user and only an encrypted key for that password is stored with StrongCoinThe Kindle, Bitcoin and client side address generation. (StrongCoin). As such, if the passphrase is forgotten or lost, not even StrongCoin can help to recover the funds. The service does provide the ability to print paper backups of the keys which can be re-imported and when doing so no passphrase is required.
==Interesting Features==
*Import of private-keys in Mini private key format
*Printable "paper" backup of key-pairs
==Fees==
* StrongCoin adds 0.01 BTC per spend transaction.
==External Links==
* StrongCoin website
==References==
Category:eWallets
Category:HybridEWallets
Stuff Exists

A directory that serves as a guide to the Bitcoin ecosystem.
Major sections include:
* ART
* ARTICLES
* BLOGS
* CHARITY
* CODING
* CODING VIDEOS
* COMMUNITY
* DEFLATIONARY BALANCING
* DIRECTORIES
* DISCUSSION
* DOCUMENTATION
* EARN BITCOINS
* EDUCATION
* EVENTS
* FEATURES
* FOOD
* FORUM POSTS
* FUTURE DEVELOPMENT
* GAMES
* HOW TO BUY BITCOINS
* INCUBATORS
* INCUBATORS
* LEGAL
* MARKETPLACES
* MERCHANT TOOLS
* MINING
* NEWS SITES
* ONLINE PRODUCTS
* ONLINE STORES
* OTHER
* OTHER MEDIA
* PLACES THAT ACCEPT BITCOINS
* PROMOTIONAL TOOLS
* QUICK LINKS
* QUICK STATS
* RECENT
* SERVICES
* TOOLS
* VALUE STORAGE
* VIDEOS
The publisher of this directory also publishes the Coinie blog.
==See Also==
* Blogs
==External Links==
* Stuff Exits website
==References==
Category:Directories
SuperChange

== About SuperChange.is ==
Exchange service SuperChange was founded in 2005. The mission of the service is to provide a fast electronic currency exchange. Most of all exchange operations in SuperChange are performed automatically in the 24/7/365 mode and are usually completed within several minutes. 
== History == 
SuperChange service was launched in 2005 as automatic exchange service. Since 2013 the exchange service works with Bitcoin.
==Fees and rates==
Fees and rates are changing often (especially cryptocurrencies) so best option is to check exchangers website often.
==Discounts for Clients==
To registered clients service offers a Cumulative discount program for all exchange rates. All registered users are entitled to a progressive discount based on the total amount of funds exchanged through the service in the past and applied to the current service commission. When you reach higher discount level, you will get the lower level of our commission and the more favourable exchange rate. This allows significant savings in the subsequent exchanges.
Also service uses a Dynamic discount program, which is calculated from the current sum of exchange. For larger amounts you get larger discounts.
 Total discount = Cumulative discount + Dynamic discount.
==Partner program up to 30% from SuperChange income==
SuperChange offers two level referral system for partners. Every registered user can participate in affiliate program. Up to 30% from our fee of referred exchange.
==External links==
SuperChange.is
Partner Program
Discount Program
Category:Exchanges
Swepool

a mining pool.
The service was first available on May 14, 2011Swepool.net Pay-Per-Share, LP, JSON-API, SSL, Email Notify, Super Low Variance!.
This pool was paying out using a pay per share reward system, but it switched to proportional systemSwepool switching to propotional.
This pool is now a p2pool.
==Reward distribution==
* Proportional, 1% fee.
==See Also==
* Comparison of mining pools
* Pooled Mining
==External Links==
* Swepool web site
==References==
Category:Pool Operators
Swissbitcoins

Formerly, a service allowing the purchase of bitcoins with Swiss Francs (CHF).
==History==
The service went online November 2, 2012We are now online!.
The service was shuttered after its bank withdrew serviceOur bank shut us down for now.
==See Also==
* Buying bitcoins
* Selling bitcoins
==External Links==
* Swissbitcoins.ch website
==References==
Synala

Synala is a free, open sourced PHP system by Envrin Group that you install on your server, enabling you to easily and securely accept Bitcoin payments online. No more need to signup for a merchant service like BitPay, as Synala allows you to easily become your own payment processor, with absolutely no fees, while you remain in 100% control over your own funds.
Fully supports multiple BIP32 wallets, multisignature transactions, offline signing, user registration, products, invoices, and more. No private keys are stored online at any time, making your funds just as secure as cold / offline storage, if the proper precautions are being taken.
==External Links==
* Website
Category:Shopping_Cart_Interfaces