Bytecoin is the first cryptocurrency created with CryptoNote technology. Bytecoin allows users to make absolutely anonymous money transfers through the CryptoNote algorithm. CryptoNote uses CryptoNote ring signatures to provide anonymous transactions and allows you to sign a message on behalf of a group. The signature only proves the message was created by someone from the group, but all the possible signers are indistinguishable from each other. Even if outgoing transactions are untraceable, everyone may still be able to see the payments received and thus determine one's income. By using a variation of the Diffie-Hellman exchange protocol, a receiver has multiple unique one-time addresses derived from his single public key. After funds are sent to these addresses they can only be redeemed by the receiver; and it would be impossible to cross-link these payments. As a primarily peer-to-peer (p2p) payment system, Bytecoin has many of the same use-cases as Bitcoin. Created in 2012, Bytecoin is one of the earliest developed cryptocurrencies. Until recently, the team behind the coin has kept themselves anonymous. Now, though, they’ve opened up multiple communication channels, removed some layers of anonymity, and even built several local communities. Bitcoin’s PoW consensus algorithm heavily favors miners that use powerful GPU and ASIC machines over those trying to mine with CPUs. This causes the network to centralize around the more powerful miners. Bytecoin attempts to close the gap between these two classes of miners with a new algorithm, Egalitarian Proof-of-Work (PoW). Egalitarian PoW uses a version of skrypt, a proof of work function similar to the hashcash function used by Bitcoin. The difference between the two is that scrypt isn’t memory bound. Because of this, you can produce highly efficient CPU mining rigs. GPUs will always be about 10 times more effective, though. The Bytecoin project has been fairly fractured since its inception in July 2012. Previously, several isolated teams worked on the project without seemingly communicating with each other. This led to numerous forks and versions of the coin. In July 2017, the team decided to change their image and provide more transparency to the community. The team still remains pseudo-anonymous by only providing names and headshots on their webpage – no bios or social media links. But, it’s tough to expect more from a project that’s focused on privacy. The team has been busy at work refactoring their code and are planning to release a new public API on February 6, 2018. They’ll also be entering the Asian, Middle East, and African markets throughout 2018.
Quantstamp is a security-auditing protocol for smart contracts. As a apps platform, Ethereum has proven its security time and again. However, apps and smart contracts on top of Ethereum may still have bugs in which malicious players can cause havoc on the network. The two most notable examples of these being the $55 million DAO hack and the $30 million Parity wallet bug. These issues not only affect the people who’ve had their funds stolen, but they also diminish the credibility of the entire ecosystem. Quantstamp is making smart contracts more secure through automated software testing and a system of bug bounties. Although starting with Ethereum, the team is building the protocol to be available on any DApp platform in the long run.In an industry where security is a primary concern and bugs have caused the theft of millions of dollars, Quantstamp should help to legitimize blockchain projects and ensure that large-scale smart contract hacks are a thing of the past. Quantstamp held a successful ICO in November 2017 in which the team raised a little over $30 million dollars. They distributed 650 million (65%) QSP out of the 1 billion total supply to ICO participants at a price of $0.072 per token. After the usual post-ICO volatility, the QSP price stabilized at around $0.10 (~0.000005 BTC) through the end of November. The price followed the trend of the altcoin market and rose rapidly to an all-time high of $0.82 (~0.000051 BTC) before slowly falling to its current price of ~$0.286. The QSP price weathered the beginning of the year market downfall better than most other altcoins.