BitBay is a free, decentralized marketplace for buying and selling goods and services on the blockchain. You can connect directly with peers and transact without the need for a middleman like Amazon, eBay, or Craigslist. Transactions are secure and anonymous. They’re also guaranteed by escrow. The project aims to be the new standard for eCommerce, allowing individuals to trade one-to-one at scale. As a result, BitBay claims it will revolutionize global trade. It’s seemingly a great solution for other niche applications as well, where groups of people aren’t served by existing marketplaces. In the beginning, BitBay got off to a rocky start. In 2014, the original founders raised capital in bad faith and quickly abandoned the project after fundraising, leaving the lead developer holding the bag. It seemed like BitBay was finished, but the developer continued working on the project out of a sense of duty to the original investors, without access to the capital raised in the fundraising round. The BAY token is the transactional token in the marketplace. You use it to buy and sell, and it can also participate in freezes, escrow, bets, swaps, etc. The token itself operates like Bitcoin and is secured by the network. Although you can use BAY for transactions, you don’t have to. You do, however, have to use BAY if you’d like to take part in token staking. BAY’s price cratered after the original founders left and stayed low until March 2017 when it took off. It has been through several cycles of bull and bear runs, with a max price over 30 cents in January 2018 before retreating to its current value. BitBay supports all kinds of privacy and security measures. It’s easy to create a multisignature wallet for added security. There are integrations for Tor and other proxies that help anonymize your connection to the marketplace. An on-screen keyboard allows for password or key entry without using your keyboard and being susceptible to keylogging. Additionally, you can create images with your private key embedded, so that finding a stored key is more difficult for a hacker. The marketplace also has functionality for time locking contracts and swapping currencies. This enables all kinds of cross-chain transactions and financial implements. The time lock and other smart contract elements make it possible to create bets, escrow, futures and options trades, or any number of other financial transactions. The idea and implementation by BitBay, of a decentralized marketplace and trading platform is brilliant and shows further promise of expansion.The rocky beginning of the cryptocurrency and its subsequent comeback as a promising platform indicate that the developers are in it for the long haul and don’t plan on abandoning the platform after all these years.
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.