|Consensus||Proof of Work (PoW)|
|Public / Private / Permissioned||Public|
|Smart contract language(s) supported||Solidity|
|Transaction visibility||All participants have access to all entries ever recorded.|
|Transaction ordering||All participants must reach consensus over the order of all transactions that have taken place, irrespective of whether a participant has taken part in a particular transaction or not.|
PoW is vulnerable to a “51% attack”. Whoever has 51 percent or more of a network’s computing power can manipulate the blockchain to their advantage.
Performance on public blockchains utilizing PoW are orders of magnitude less than permissioned or private blockchains running other consensus protocols.
Token securitization, land registries, token-enabled marketplaces, standardized data, add digital identity, certifications (e.g. academic, birth) and notarization.
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