What problem does this service solve?

HTMLCoin's goal is to create a better performing smart contract platform.

Sphere's goal is to create a digital currency with a fair distribution model.

BlackCoin does not appear to provide any unique advantages compared to other digital currencies.

Token Stats

Company Description

HTMLCOIN is a Proof-of-Stake (PoS) blockchain platform focused on enabling the practical applications of smart contracts. The HTML blokchain is a hybrid of Ethereum and Bitcoin, and also combines elements of other blockchain infrastructures.

Sphere is a smart contract platform and peer-to-peer payment network. The network has a hybrid PoW and PoS consensus mechanism and is powered by the native SPHR token, which can be swapped for an ERC20 token over the Ubiq smart contract platform.

BlackCoin is a Proof-of-Stake (PoS) cryptocurrency created in 2014. Users are rewarded for staking their coins to secure the network. BlackCoin's staking rewards vary between 1% to 8% per year.

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HTMLCOIN vs Sphere vs BlackCoin

HTMLCOIN

Sphere

BlackCoin