Beam Mimblewimble is a scalable, fungible, and confidential cryptocurrency based on the Mimblewimble implementation. WHY BEAM? Core features include complete control over your privacy, All transactions are private by default, No addresses or other private information are stored on the blockchain, Superior scalability due to compact blockchain size, Opt-in Auditability, Support online and offline transactions, atomic swap, hardware wallets integration. Governance model No premine, No ICO. Backed by Treasury Establishing a non-profit foundation to govern the protocol after Mainnet launch How does it work? Wallets’ owners create new transaction using secure channel either online or offline Both wallets participate in signing the transaction using Schnorr protocol Wallet sends transaction to node Each transaction contains a list of Inputs and Outputs represented by Pedersen Commitments, as well as explicit fees and kernels. Each transaction also contains non-interactive zero knowledge range proof to verify that the output transaction value is positive Transaction is verified by the node Each transaction is verified with respect to the recent blockchain state which is stored as a Merkle Tree. The root hash of the tree is recorded in block header along with a proof of work. In addition, each node periodically creates compacted history to allow ‘fast sync’ of new and existing nodes. Transaction is added to the mining pool A block is mined every minute and is sent back to the node for verification and distribution. Mined blocks containing the new transactions are sent to the known peers A valid block that is extending the longest chain is accepted as a new Tip and propagated further until full consensus is reached. Fast sync When a new node connects to the network for the first time it can request compacted history containing only system state and blockchain headers. There is no need to retrieve the entire transaction history.
Blockchains are quickly becoming the modern equivalent of what apps were to smartphones when they took off a decade ago. There’s a blockchain for everything - from cloud storage (Siacoin) to identity verification (Civic). But the original point of Bitcoin, the very cryptocurrency was to overturn the traditional banking system. An interestingly named token - Bread, is here to bring us back on track for this original goal. Bread technology intends to reinvent and revolutionize banking as we know it. By building a blockchain synced, Bitcoin-based wallet, the idea here is to decentralise banking and make it accessible to everyone. With a blockchain connected, easy to use Bitcoin wallet, Bread makes it easy for you to transition to a truly decentralised banking service.It also provides portfolio management tools to offer a comprehensive banking experience. Purchases made using its BRD token attract loyalty points and rewards, giving customers another lucrative reason to use the Bread wallet app. Bread was officially launched in 2014 itself and even raised VC funding to the tune of $7 million in August 2017. It then went the ICO route in December 2017, where it made available 88 million BRD tokens. $32 million was raised in the price, with BRD being valued at the rate of 900 for every 1 ETH at the time. As of June 2018, just over 6 months later, its value had fallen to above 1600 for every 1 ETH. A decentralised banking system was Bitcoin’s original vision that is either taking too long to fruition, or we’ve become an impatient audience. Whatever the case, Bread wants to accelerate the transition. A significant decision the Bread team took was to introduce the BRD token - which, with its cheap rates and loyalty/discount offerings, may emerge as the primary incentive for users joining the platform. If this is indeed the case, expect a spike in the value of the BRD cryptocurrency, something investors right now would be eyeing closely. Having said that, its fall in value since the ICO is certainly a cause for concern, and investors are advised to do their research and analyse before taking decisions.