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.
Vertcoin is a decentralized currency owned by its users, a P2P cryptocurrency in the same vein as Bitcoin and Litecoin. Like its two predecessors, Vertcoin exists solely as a currency, and it uses proof of work to reach distributed consensus. Unlike its two predecessors, however, Vertcoin is dedicated to keeping its mining functions decentralized, so contrary to most PoW coins, it’s ASIC resistant. Branding their project as “The people’s coin,” Vertcoin’s team believes that ASIC resistance invites a fairer, more democratized currency for both users and miners. Along these lines, Vertcoin sports its very own 1-click miner, a program meant to make mining more accessible to the general public. The motivation of Vertcoin was the fact that Scrypt-based ASIC mining chip that is used to mine Scrypt derivative coins such as Litecoin and Dogecoin is entering the mass market. That coupled with strong mining pool causes the strength of a cryptocoin to drop as it becomes easier for a specific party to pull a 51% attack and even monopolize the network. Scrypt-Adaptive-Nfactor was created to address that issue. Vertcoin is zero premined and as of the current design, only 84 million coins would ever be created. Vertcoin is said to be the next generation of coins due to its unique hashing algorithm. There may be more altcoins created based on this hashing algorithm in order to defend their network against ASIC miners. Like most all pre-2015 coins, Vertcoin took a deathblow after Mt. Gox was hacked, throwing the entire market into a crypto winter. As such, it was relatively inactive until the revival last spring/summer. Since then, it has had steady climb up the market cap ladder. A 2014 International Business Times article mentions Vertcoin as a potential Bitcoin successor. The article notes that it ''hopes to offer an alternative. By taking the foundations of Bitcoin and making some adjustments, Vertcoin punishes miners who use powerful machines and work together in 'pools' to monopolise the mining market.'' On July 1, 2014, Vertcoin released a wallet supporting Stealth Address transactions. On December 13, 2014 (block 208301), Vertcoin forked from Scrypt-Adaptive-N proof-of-work function to Lyra2RE as a proactive defense against emerging Scrypt-Adaptive-N capable ASICs. On August 10, 2015 (block 347000), Vertcoin forked from Lyra2RE to Lyra2REv2 because a botnet was controlling more than 50% of the hashing power of Vertcoin network. On May 7, 2017, Segregated Witness (SegWit) feature was activated in the main network. SegWit update includes the Lightning Network technology that was also demonstrated in action during the same day.'