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@@ -1,20 +1,17 @@
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# Overview
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-DarkFi is a layer one proof-of-stake blockchain that supports anonymous applications. It is currently under heavy development. This overview will outline a few key terms that help explain DarkFi.
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+DarkFi is a layer one proof-of-stake blockchain that supports anonymous applications. It is currently under development. This overview will outline a few key terms that help explain DarkFi.
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-**Cashier:** The Cashier is the entry-point to the DarkFi network. Its role is to exchange cryptocurrency assets for anonymous wrapped tokens that are pegged to the underlying currency. This is fully redeemable at cash-out. For example, if you deposit 1 ETH, you will receive 1 wETH on entry to the DarkFi network. If you gain a further 0.5 ETH on a successful trade, you will exit with 1.5 ETH, minus network fees.
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+**Cashier:** The Cashier is the entry-point to the DarkFi network. Its role is to exchange cryptocurrency assets for anonymous _darkened_ tokens that are pegged to the underlying currency. Currently, the role of the Cashier is trusted and centralized. As a next step, DarkFi plans to implement trust-minimized bridges and eventually fully trustless bridges.
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-Much like on a traditional OTC trading website, anyone can be a cashier. Cashier's have one public key, however a Cashier can also be a multisig through an aggregated public key.
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+**Blockchain:** Once new anonymous tokens (e.g. dETH) have been issued, the Cashier posts that data on the blockchain. This data is encrypted and the transaction link is broken.
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-Currently, the role of the Cashier is trusted and centralized. As a next step, DarkFi plans to implement trust-minimized bridges and eventually fully trustless bridges.
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+The DarkFi blockchain uses a Proof-of-Stake consensus system. The blockchain is currently in devnet phase. This is a local testnet ran by the DarkFi community. Currently, the blockchain has no consensus token. In the future, staking will be rewarded with transaction fees.
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-**Blockchain:** Once new anonymous tokens (e.g. wETH) have been issued, the Cashier posts that data on the blockchain. This data is encrypted and the transaction link is broken.
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+**Wallets:** A wallet is a portal to the DarkFi network. It provides the user with the ability to send and receive anonymous _darkened_ tokens. Each wallet is a full node and stores a copy of the blockchain. All contract execution is done locally on the DarkFi wallet.
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-On the DarkFi network, the role of the blockchain is minimized to data availability. All execution and computation is handled locally in a user's wallet. However, this does not impact security: if non-valid behavior is detected, it will be rejected from the blockchain.
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+**P2P Network:** The DarkFi ecosystem runs as a network of P2P nodes, where these nodes interact with each other over specific protocols (see [node overview](dna.md)). Nodes communicate on a peer-to-peer network, which is also home to tools such as our P2P chat [irc](../misc/ircd.md) and P2P task manager [tau](../misc/tau.md).
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-The DarkFi blockchain uses a Proof-of-Stake consensus system. Validators are paid for in transaction fees, which are denominated in DRK. Anyone can be a validator and stake DRK in exchange for transaction fees.
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-**Wallets:** A wallet is a portal to the DarkFi network. It provides the user with the ability to open and enter into trades, as well as to issue their own custom contracts and assets. Each wallet is a full node and stores a copy of the blockchain. All contract execution is done locally on the DarkFi wallet.
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-The DarkFi wallet communicates with other wallets through a peer-to-peer network. This peer-to-peer network is called the **Pulse Network** and allows for the coordination of anonymous trades.
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+**zkas:** zkas is the compiler used to compile zk smart contracts in its respective assembly-like language. The "assembly" part was chosen as it's the bare primitives needed for zk proofs, so later on the language can be expanded with higher-level syntax. Its underlying zero-knowledge proof system is Halo2.
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+**ZK contracts:** Anonymous applications on DarkFi run on proofs that enforce an order of operations. We call these zero-knowledge contracts. Anonymous transactions on DarkFi is possible due to the interplay of two contracts, mint and burn (see the [sapling payment scheme](../zkas/examples/sapling.md). Using the same method, we can define advanced applications.
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