Qtum's Ignition release includes a working smart contract and decentralized application platform secured by a proof - of -
stake consensus model.
The system will make use of a proof - of -
stake consensus model that will encourage people to purchase, own, and operate OmiseGO network nodes.
That is why Qtum made the decision to build a modified Bitcoin Core infrastructure (UTXO) with an intercompatible version of the Ethereum Virtual Machine (EVM), which leverages the more economical proof of
stake consensus model.
Both the larger platform and the Stratis token are actually based on bitcoin, with some modifications and additions such as implementing a proof - of -
stake consensus model rather than the proof - of - work model used by bitcoin.
Stratis uses a proof - of -
stake consensus model rather than proof of work.
Ethereum developers are planning a switch from a Proof - of - Work consensus model to a Proof - of -
Stake consensus model in the future.
Not exact matches
Ethereum's creator Vitalik Buterin and other developers have discussed eventually moving to a proof - of -
stake model, in which users lock ether up in special wallets and risk losing these «
stakes» if they don't follow the
consensus rules.
This is a challenge to Bitcoin's governance
model, because it requires the community to come to a
consensus on an issue where there seem to be high
stakes and plausible arguments on each side.»
This lets users of enterprise versions of Ethereum utilize Ethereum's
consensus model: proof of work currently, perhaps proof of
stake in the future.
Perhaps foremost among these, Bitcoin Atom uses a hybrid
consensus model that combines Proof of Work (POW) and Proof of
Stake (POS), two different types of algorithms for reaching
consensus, or agreement, on whether or not a transaction is valid before it is added to the blockchain.
There are a variety of different
consensus algorithms out there, but two
models generally dominate the space: proof of work and proof of
stake.
In order to prevent this, Larimer is instituting a
consensus model that he created himself called delegated proof - of -
stake.
For example, although extremely unlikely, perhaps one day bitcoin or a major bitcoin fork could switch to proof - of -
stake for its
consensus model if Ethereum is highly successful in doing so.