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SUN (SUN) is a digital asset aimed at advancing decentralized finance (DeFi) on the TRON blockchain. It is often referred to as the Bitcoin equivalent on TRON and operates under the TRC-20 token standard. The project is community-driven, with operations managed through smart contracts. The initial mining phase started in September 2020 and lasted two weeks before the official launch. Participants can stake TRX or other TRC-20 tokens to earn rewards and gain governance rights.

SUN is linked to TRON and shares a surname with its founder, Justin Sun, a prominent figure in the crypto space known for his promotional activities and a $4.5 million charity lunch with Warren Buffett. While Sun has publicly supported SUN, the developers' identities are not officially disclosed. The project is managed by a dedicated community, with all actions and updates executed via smart contracts following community governance. The whitepaper describes SUN as a social experiment, with future plans possibly involving decentralized lending, insurance, liquidity, and stablecoins.

SUN's primary role is to support the TRON protocol, which seeks to build a decentralized internet. It focuses on DeFi and encourages adoption on TRON's network by rewarding users for staking and participating in governance. Its appeal lies mainly with existing TRON users and DeFi enthusiasts. As of its launch in September 2020, profitability was uncertain. The whitepaper emphasizes fair token distribution, with no funding accepted and no tokens reserved for developers or the TRON team, unlike TRON's 2017 ICO that raised over $70 million.

SUN had no premine at launch, and the whitepaper states that mining is the only way to earn it, achieved by staking TRX or other TRC-20 tokens. There are two mining phases: genesis mining, which lasted two weeks in September 2020, and regular mining afterward. The genesis phase produced 9.34% of the total supply, which is capped at 19,900,730 SUN. User rewards depend on the staked amount and duration, and participants can withdraw their staked assets and claim SUN at any time.

SUN's security model is similar to other proof-of-stake cryptocurrencies, relying on community consensus and financial incentives. Although it compares itself to Bitcoin in ethos, it does not use proof-of-work and lacks Bitcoin's long history of verifiable transactions. Stakers should be aware of the risks of locking funds in smart contracts, even though SUN's protocol has undergone independent audits.

SUN is available on numerous exchanges, offering trading pairs with various cryptocurrencies and stablecoins. Major platforms like Huobi, Binance, and OKEx provide liquidity, with OKEx also offering USD derivatives. For newcomers, there are guides available to help purchase Bitcoin or other tokens.