Create sui-token.md (MystenLabs#2159)

* Create sui-token.md * Update sui-token.md Co-authored-by: econmysten <[email protected]>
toxicoff · May 23, 2022 · 251e853 · 251e853
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+---
+title: The Sui Token
+---
+
+Sui’s native asset is called SUI and we generally use the capitalized version of SUI to distinguish the token from the Sui platform.
+
+The total supply of SUI is capped at 10,000,000,000 (i.e. ten billion tokens). A share of SUI’s total supply will be liquid at mainnet launch, with the remaining tokens vesting over the coming years or distributed as future stake reward subsidies. Each SUI token is divisible up to a large number of decimal places.
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+The SUI token serves four purposes on the Sui platform:
+
+* SUI can be staked within an epoch in order to participate in the proof-of-stake mechanism. 
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+* SUI is the asset denomination needed for paying the gas fees required to execute and store transactions or other operations on the Sui platform. 
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+* SUI can be used as a versatile and liquid asset for various applications including the standard features of money – a unit of account, a medium of exchange, or a store of value – and more complex functionality enabled by smart contracts, interoperability, and composability across the Sui ecosystem. 
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+* SUI token plays an important role in governance by acting as a right to participate in on-chain voting on issues such as protocol upgrades.
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+Since the SUI token is available in finite supply, SUI may face deflationary pressure in the long run if Sui unlocks more use cases and more users migrate to the platform. In addition, the storage fund’s presence creates an additional deflationary force in that higher on-chain data requirements translate into a larger storage fund, thus reducing the amount of SUI in circulation.