What problem does this service solve?

Primecoin uses prime number generation to improve Bitcoin's PoW protocol.

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

HappyCoin is a community oriented digital currency that was designed to be used to buy goods and services in Thailand.

Token Stats

Company Description

Primecoin is a cryptocurrency based on finding prime numbers. Identifying prime numbers plays a central role in cryptography. Primecoin's unique Proof-of-Work (PoW) consensus mechanism is able to increase transaction speeds and improve energy efficiency.
The network searches for special prime number chains known as Cunningham chains and bi-twin chains, which are of interest in mathematical research.

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.

HappyCoin is a Thai digital currency. It is designed to be used as a medium of exchange within Thailand. HappyCoin (HPC) has a hybrid consensus mechanism that combines elements of Proof-of-Work (PoW) and Proof-of-Stake (PoS).

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Primecoin vs Sphere vs HappyCoin

Primecoin

Sphere

HappyCoin