See below for technical information about Spero.
This algorithm uses 13 rounds of hashing with 13 different hash-functions (blake, bmw, groestl, jh, keccak, skein, luffa, cubehash, etc.), which makes it one of most reliable in a modern cryptocurrencies world.
Hybrid mining PoW and PoS
With Spero you mining with proof of work(PoW[ASIC, GPU, CPU, etc]) and also mining just leaving your wallet with active balance online, open and unlocked, the well-known proof of stake(PoS).
There are 7 million coins total, and were pre-mined 100,000 for application in several areas of the project.
Encrypted Message (E2M)
With Spero you can send encrypted messages to other users, having in hand only the address and the public key of the recipient.
Block time: 60 seconds
Difficulty reset to each block
Return PoS: 25% per year
Velocity: Triple check for each transaction thus preventing Double Spending