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.
DMarket is a decentralized game asset marketplace. The marketplace covers a wide variety of games and turns virtual items into real commodities that can be traded on the blockchain. The idea of tokenization is central to the blockchain where any item can be represented as a token on the blockchain. This creates an emerging economy around digital assets where they become real items. There are an estimated 2.3 billion gamers worldwide and ample opportunity to monetize digital assets. The gaming economy is estimated at $450 billion There are two types of assets available on DMarket. The first type is a virtual Steam item. This Steam item is an in-game asset this is available for a specific game. At the moment there is a horde of items available for Counter-Strike: Global Offensive. There is also a DMarket Blockchain item that is an internal blockchain item that can be traded on the DMarket blockchain. Users can sell Steam items for US Dollars (USD) or DMarket items for USD or DMC, the internal DMarket cryptocurrency. Users can buy Steam items for USD or DMC or DMarket items for DMC. In order to sell Steam items on DMarket, users have to connect their Steam account to their DMarket account. DMarket blockchain items can be traded without connecting to Steam. Users have to register on DMarket. This creates a DMC wallet for them where they can store their DMC currency and DMarket items. The DMarket platform also has its own block explorer. All wallets and transactions are recorded in the public blockchain. DMarket has a future-proof use case as the demand for a universal gaming trading platform is imminent. Strategic partnerships between game title developers, the gaming community and gamers will ensure that DMarket lives well beyond its proprietary blockchain phase.