Syscoin (CRYPTO:SYS) is a permissionless blockchain-based cryptocurrency with a set of smart contracts which have been thoroughly tested and built on the Bitcoin scripting system using OP1 to OP16 standard script op-codes, representing coloured coin transactions, controlled by a hardened layer of distributed consensus logic for each smart contract (Syscoin service) while still retaining backwards compatibility with the Bitcoin protocol. These contracts can be combined to form building blocks for blockchain-based e-commerce solutions.
