Proof of Space (PoSpace) Summary [Cryptocurrency consensus mechanisms]
Proof of Space uses hard disk space as the value used to guarantee a participant’s stake in mining. By allocating disk space, the network participant provides value to the network, which uses this space to solve computational problems. Given low network bandwidth for a lot of regions, making it difficult to transfer large amounts of […]
ELI5 Proof of Stake (PoS) – How does PoS work?
In the cryptocurrency universe, Proof of Stake (PoS) is an alternative to the Proof of Work (PoW) consensus mechanism. How PoS Works While PoW guarantees that each network participant has performed a certain amount of work in order to receive a reward, Proof of Stake requires participants to prove that they are willing to guarantee […]
Proof of Location (PoL) Summary [Cryptocurrency consensus mechanisms]
In a Proof of Location consensus algorithm, users’ geospatial coordinates are accounted for as proof of value. This kind of algorithm is usually employed in cryptocurrency geomining systems. In a geomining application, users earn rewards for being at a certain place at a certain time. If, for example, a company wished to gather participants for […]
Proof of Capacity (PoC) Summary [Cryptocurrency consensus mechanisms]
Proof of Capacity (PoC) consensus algorithms require network participants to prove they have performed a certain amount of storage operations in order to mine a valid block. Where Proof of Work consensus requires users to prove they have performed computations in time (to guarantee a 10 minute space between Bitcoin blocks, for example), Proof of […]
Concepts In This Page
A process or system by which multiple parties are able to reach consensus. In the context of cryptocurrencies, it's the process which allows for everyone to agree on everyone else's money balance. E.g. Bitcoin employs Nakamoto consensus via PoW mining.
Abbreviation for Proof of Authority consensus mechanism
Proof of Authority
In the Proof of Authority consensus mechanism, participants stake their reputation within an ecosystem in order to verify transactions.
Proof of Activity
A hybrid consensus mechanism consisting of a mix of Proof of Work and Proof of Stake. For example, Decred uses PoA