Dash is a decentralized, open-source cryptocurrency and blockchain designed to function as a rapid and low-cost global payment system. The project’s whitepaper states that Dash aims to enhance Bitcoin (BTC) by delivering quicker transactions and improved privacy.

Originating from the term "digital cash," Dash began in January 2014 as a fork of Litecoin (LTC). Since its launch, the network has expanded to incorporate several key features: a two-tier structure with incentivized nodes known as "masternodes" alongside decentralized governance; InstantSend for immediate payment settlement; ChainLocks to ensure instant immutability of the blockchain; and PrivateSend, which provides optional extra privacy for transactions.

Software engineers Evan Duffield and Kyle Hagan established Dash. Initially launched as XCoin, the project was renamed Darkcoin after two weeks, then rebranded to Dash in March 2015 to improve its public perception.

Prior to Dash, Duffield worked in finance at Hawk Financial Group and in public relations, where he built search engines and machine learning algorithms. He conceived the idea in 2012 to enhance Bitcoin’s anonymity, which led to the original name Darkcoin. Duffield stated that he coded the initial version in a single weekend as a hobby. He acted as CEO of Dash Core Group, the entity supporting Dash’s development and integrations, until stepping down in December 2017 to pursue other strategic goals.

Hagan co-wrote the original Darkcoin whitepaper with Duffield but departed the project early in December 2014.

The Dash website states that the project aims to become the world's most scalable and user-friendly cryptocurrency focused on payments. To achieve this, it utilizes a masternode network. These are servers secured by Dash collateral that manage governance for the proposal system and deliver advanced services securely. Masternodes receive a portion of block rewards in return for providing this second layer of functionality, which includes features like InstantSend, PrivateSend, and ChainLocks.

Dash targets both individual users and institutional clients, such as traders, merchants, financial service providers, and people sending international remittances. In October 2020, the Dash Core Group outlined its future strategic goals, which involve strengthening the brand and ecosystem, maintaining user satisfaction, and continuing to improve the underlying technology.

The network’s decentralized governance model, known as the treasury, allocates 20% of block rewards to fund project development through a competitive process. This mechanism has supported the establishment of various funded entities, including the Dash Core Group.

The total supply of Dash is capped at 18,921,005 tokens, though the final amount relies on governance decisions regarding the 10% of block rewards set aside for budget proposals. If these funds are never distributed, the maximum emission would be limited to 17,742,696 DASH. New coins are generated via proof-of-work mining, with the emission rate dropping by one-fourteenth (roughly 7%) every 210,240 blocks, which occurs approximately every 383 days.

Currently, miners receive about 45% of new DASH, masternodes get 45%, and 10% goes toward funding future proposals. In August 2020, a proposal was approved to shift the miner-to-masternode reward ratio from 50/50 to 40/60 once implemented.

During the initial 48 hours after launch, around 2 million coins were mined, far surpassing the intended schedule. Dash originated as a fork of Litecoin, which experienced a comparable problem at its start due to a flaw in its difficulty adjustment algorithm. Although it is well-established that Dash inherited this bug from Litecoin, there remains significant speculation about whether the rapid early mining was deliberate to advantage early participants.

Dash secures its transactions through a two-tier network structure. The first tier involves nodes performing mining via a proof-of-work consensus mechanism. These nodes compete to resolve intricate cryptographic puzzles, and a transaction requires approval from at least 51% of the nodes to be recorded on the blockchain.

Dash employs the "X11" proof-of-work algorithm, a custom hashing method created by founder Duffield that chains together 11 different hashing algorithms. Dash’s documentation describes X11 as "one of the safest and more sophisticated cryptographic hashes in use by modern cryptocurrencies."

The second tier comprises masternodes that function under a proof-of-service consensus model, where they are evaluated based on their track record of delivering reliable services to the network. These masternodes monitor the system and possess the authority to discard new blocks if they were improperly validated by the first-tier nodes. Additionally, they facilitate Dash's ChainLocks feature, which enhances security by having a rotating selection of masternodes verify all new blockchain blocks every 12 hours. According to Dash’s developers, this mechanism safeguards the network against 51% attacks.

Dash (DASH) is available on many leading crypto exchanges due to its status as a popular altcoin. Platforms such as Binance, Coinbase Pro, Huobi Global, Kraken, and OKEx list the asset. Traders can exchange it for fiat money, cryptocurrencies like Bitcoin and Ether (ETH), or stablecoins including Tether (USDT) and USD Coin (USDC). Both spot and derivatives markets support buying and selling Dash.