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.
NEM is a highly versatile crypto solution which seeks to adhere to a host of mainstream industry requirements. It is written in Java and JavaScript with 100% original source code. NEM has a stated goal of a wide distribution model and has introduced new features in blockchain technology in its proof-of-importance (POI) algorithm. NEM also features an integrated P2P secure and encrypted messaging system, multisignature accounts and an Eigentrust++ reputation system. Essentially, NEM is designed as a financial blockchain solution and can be used for payment, clearing and settlement in a private environment which is highly controlled. This means that NEM meets several of the regulatory requirements and guidelines in the financial industry. This allows it to be used to settle (change of ownership) any asset via the blockchain. Mijin which is a private chain of NEM has gained popularity and companies such as Hitachi have already embraced it. Why NEM? Many banks around the world have come to accept the importance of blockchain technology. In fact, a good number of banks in the U.S, India and Japan have already started using the technology. Because banks generally employ the smart contract concept, NEM’s platform which is asset-friendly can be used to settle any asset. In settling assets, speed, security, and reliability are very important to a mainstream institution which is what this crypto offers. NEM addresses these issues by repackaging its blockchain into a private chain and presenting it as Mijin. NEM crypto is also applicable in the technology world. Unlike Bitcoin and Dogecoin which use mining to increase the number of coins, XEM uses something called ‘harvesting’. In this process, blocks are generated and a person is rewarded for work contributed using transaction fees. Every block has a certain number of transactions which attract an unknown amount of fees. This keeps the participants incentivized to continue harvesting. For a blockchain user to be allowed to harvest, one must go through a forging mechanism process called Proof-of-Importance (POI). POI is the algorithm used in NEM to time stamp transactions. A NEM user's importance is determined by how many coins they have and the number of transactions made to and from their wallet. POI uses the NCDawareRank network centrality measure, the topology of the transaction graph, as well as a number of other relevant signals to achieve consensus. POI is different from other initiatives which use a fee-sharing model that does not take into consideration one's overall support of the network. In proof-of-stake systems a person needs to have large numbers of coins to form a block, but in NEM transactions volume and trust become factors. This was designed to encourage users of NEM to not simply hold XEM but instead actively carry out transactions. To be eligible for entering the importance calculation, an account must have at least 10,000 vested XEM. All accounts owning more than 10,000 vested XEM have a non-zero importance score. With a supply of 8,999,999,999 XEM, the theoretical maximum number of accounts with non-zero importance is 899,999. In practice, the number of actual accounts with non-zero importance is not expected to approach the theoretical max due to inequalities in held XEM and also the temporal costs associated with vesting. If NEM becomes very popular, a threshold of 10,000 vested XEM could be undesirable. If necessary, this number could be updated in the future via a hard fork, which is the same procedure for adjusting transaction fees and other parameters related to harvesting.