Timeline
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04/30/2015
PoW blockchain
Sphere's genesis block is mined and a PoW Blockchain is born.
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Block #3600
PoS Coin
Sphere becomes a pure PoS coin.
PoS rewards block #3600 - 4100 = 3600
block #4101 - 5000 = 360 block #5001 - 12500 = 36
block #12501 - 125000 = 3.6 block #125001 - 1567140 = 0.36 -
Block #1567140
ERC20 token
Sphere upgraded from their own Proof of Stake consensus blockchain to an ERC20 token on the Ubiq network utilizing the independent Proof of Work algorithm UBQhash. The swap was performed by Bittrex exchange in a 1:5 ratio.