MintCoin is a new Proof of Work (POW) / Proof of Stake (POW) hybrid cryptocurrency coin. It's objective is to become the next innovative, secure, and energy efficient cryptocoin in the market. MintCoin is distributed using a fast POW distribution mechanism, and after 5 weeks, it becomes a pure POS coin. This makes the coin completely energy efficient in order to sustain itself, not having to depend on resource intensive mining rigs. MintCoin now runs on 100% Proof-of-Stake to secure the network. After the year 2016, stakers will receive a fixed 5% indefinitely as reward for securing the network. PoS variable interests: - 1st year: 20% - 2nd year: 15% - 3rd year: 10% - 4th and subsequent years: 5% MintCoin is often compared with its close counterpart - Peercoin and NXT
Zen is a decentralized financial platform, built from scratch with the goal of providing people with a secure, scalable and useful infrastructure for creating their own financial instruments, and trading them directly without intermediaries.The Zen blockchain is secured by multiple proof-of-work algorithms, with token-holder voting on the balance between them. Multi-hash mining creates robust incentives for miners to deliver efficient, reliable security.Zen smart contracts are written and secured by a subset of the F* functional programming language, allowing users to: A) Prove the amount of resources a contract will consume and provide the necessary fees for running the contract to miners, removing the need for a “gas” based system.B) Prove their contracts meet a given specification, meaning they can prove the contract will definitely do (or not do) something given a specific set of parameters.The Zen platform comes with a built-in solution for oracles, which provide contracts with useful real world data.Finally, Zen is integrated with the Bitcoin blockchain, allowing contracts to observe and respond to native bitcoin transactions