They are built on the blockchain network technology, which ensures transparency and helps track every transaction.
In fact, the project takes on the issue of the security of blockchains, services, and applications, allowing their developers not to think about the technical issues at all and focus on other tasks.
In addition, Moonbeam and Astar are two Polkadot parachains focused on bringing multichain compatibility with Ethereum other networks.
A range of other useful gold and silver calculators can be found on our Calculators page Rank Currency Market Cap.