Signum ($SIGNA) — The Original Proof-of-Work + Proof-of-Capacity Hybrid
Signum is gaining traction again!
🌾 Eco-friendly mining using hard drives (Proof-of-Capacity) 🔐 Built-in on-chain smart contracts, NFTs, atomic swaps 📦 One of the first truly decentralized storage coins 📉 Still flying under the radar — under $5M market cap 🧠 Developed since 2014 ⚡ 0.25 block time | 4-minute confirmations ♻️ No GPU wars. No ASICs. Just hard drive power.
PHPCoin : a new blockchain based on PHP programming language
phpcoin is designed as some kind of "green" coin which is tend to solve issue of heavy mining algorithms by utilising its own and unique elapsed proof of work (EPOW) Phpcoin is built on the web based platform which is easily understandable to a wider number of developers. It explains basic blockchain principles and allows people to understand its full purpose not just for earning profit.
In that way phpcoin will implement decentralized apps and databases and smart contracts written fully in well known and popular language php.
Future implementation : - Smart Contract
More info : PHPCoin.net https://www.coingecko.com/en/coins/phpcoin