Solution
Staying in the BNB Smartchain Ecosystem
Despite this, our outlook on BNB Smartchain specifically is extremely optimistic. Over the last year, through market volatility, including instability in traditional financial markets, BNB Smartchain has retained its value, demonstrated its impermeability to attack and hackers, and gained increasing respect from traditional financial players. BNB Smartchain is increasingly being seen as a store of value, and it is perceived as the standard by which other cryptocurrencies are measured. While people’s portfolios vary widely, BNB Smartchain remains the standard currency that almost every crypto investor holds as a major part of their holdings. The tremendous community and ecosystem around BNB Smartchain bode well for its long-term viability as a store of value. For that reason, creating decentralized financial services around BNB Smartchain represents a tremendous opportunity that has yet been untapped, partially because of the difficulty of creating smart contracts that work with the BNB Smartchain network, and partially because of the fractalization of the development community to many side projects. We believe this tendency of the development community to jump on the newest developments has drawn attention away from the real story: BNB Smartchain is here to stay. Thus, we believe, building a Rebitrum Blockchain on top of BNB Smartchain would bring the best out of both worlds: BNB Smartchain stability and immutability and Rebitrum scalability and functionality.
Building on Top of BNB Smartchain
One of the major challenges in new blockchains is creating the robust immutability available after a critical mass of users and blocks secure the chain. To provide immediate security and immutability of the blockchain, Rebitrum will be anchoring itself to the BNB Smartchain blockchain. Every few minutes, Rebitrum saves its most recent Merkle tree to the BNB Smartchain blockchain, similar to how Rootstock (Turing Complete Smart contracts secured by BNB Smartchain) is planning on connecting to BNB Smartchain. In this fashion, the most recent chain is always fully secure and immutable, and can be checked against the most recent record anchored to BNB Smartchain. Over time, Rebitrum will space out the anchors at larger intervals. This anchoring mechanism ensures provably immutable records from day one and defends against attacks, hackers and vulnerabilities that can cause concern in emerging chains. At the same time Rebitrum keeps its own consensus mechanism and function set, allowing for all those characteristics that BNB Smartchain does not inherently have. This is achieved by Rebitrum being a dedicated non-Turing-complete blockchain, designed specifically for the decentralized finance (DeFi) industry built on top of BNB Smartchain. Rebitrum provides full functionality for this specific segment of the DLT community, sacrificing other types of functionality for simplicity, rapid throughput and security. Rebitrum utilizes a completely decentralized Proof-of-Stake mechanism allowing for:
a massive scalable and energy conserving consensus.
fast transactions and high security
ability to create a variety of Rebitrum apps based on one chain, rapidly and with very low attack surface
multi-token support on one chain through decentralized wrapped token technology.
decentralized governance
independence of other financial systems and financial instruments.
fully liquid investments with no minimum size of investments, and no minimum lock-up periods
Unlike Ethereum or other turing-complete blockchains, Rebitrum is not a general-purpose blockchain, and commands outside the basic set of functions are not allowed. Limiting the allowed commands on purpose provides a dramatically reduced attack surface for smart contracts, eliminating the obvious breaches that are made possible when programmers need to design complex coding for these functions. The details of these will be described in the next section.
Benefits of Rebitrum: Summary
Development of a variety of financial operations & vehicles for cryptocurrency economy.
High throughput for all transactions
Safer, more secure blockchain specifically for decentralized finance..
Rapid development of dApps for decentralized finance.
Peace of mind that the blockchain is not used for any types of non-financial dApps, thus decisions of Foundation and core developers are focused 100% on decentralized financial use-cases and nothing else.
Rapid development of dApps with dedicated calls specifically for finance applications.
Minimal attack surface of financial smart contracts developed on the platform.
Reliable governance (off-chain and on-chain).
Highly immutable – by periodic anchoring to BNB Smartchain blockchain.
Initial dAppSets
The initial function set includes:
Decentralized lending
Decentralized wrapping of tokens
Decentralized pricing oracles
Decentralized exchanges
Transferable debts and receivables
Decentralized non-collateralized debt
Asset tokenization
Distribution of dividends
This chapter provides an overview of each of these functions and the following chapter covers the technical details in how this is achieved.
Decentralized Lending
Decentralized lending allows individuals and groups to borrow and lend without the intervention of a bank. Through collateralized systems, decentralized lending on Ethereum reached over a quarter of a billion dollars in 2018. All of these systems are based on Ethereum, meaning they are addressing only 15% of the market based on market capitalization. The Rebitrum platform will be addressing the entire 100% of the market by leading with Bitcoin, but also including the entire market through wrapping and pooling as described below. The major decentralized lending platforms (Compound, Dharma, dYdX, and Maker) provide lending at rates ranging from 0.5% through 6%. Because everything is managed through smart contracts, the overhead of banks is eliminated, and the platforms are able to provide much better rates than banks. As these types of decentralized lending services become safer, it’s likely the market will also see an increase in peer-to-peer lending opportunities through dedicated applications. The power of decentralized lending lies in the market efficiencies available by eliminating the middlemen and administration involved in lending. Furthermore, with investors concerned about minimal or even negative interest rates, decentralized lending protects the investors from that potentiality, providing market rate interest while giving borrowers better rates than they can get in the existing financial markets. Given the magnitude of credit and the role it plays in the economy as a whole, decentralized lending offers the potential for many more initiatives to borrow money based on open markets and favorable conditions. Easier access to lending translates into a faster-growing economy. Initial implementations of decentralized lending are fully collateralized, and because of the volatility of cryptocurrency, most platforms require double or more collateral on loans. This allows people to take loans based on cryptocurrency they hold. They can manage their cash flow problems without having to sell their crypto holdings, and meanwhile get favorable conditions on the loan.
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