You currently using the Metamask Chrome plugin and you see a selection for Etherescan in the plugin.
What is Etherscan used for?
A search engine that allows users to easily lookup, confirm and validate transactions that have taken place on the Ethereum Blockchain
If a hard fork occurs on a public blockchain software and 20 running nodes choose not to update, what can be said about those 20 nodes?
In Hyperledger Fabric, the smart contract logic is also called by two other names _______________ and ______________? (Select two.)
Consider the following scenario: A solo app developer wants to create their own cryptocurrency and build a blockchain based that allows users to buy and sell second-hand items with that cryptocurrency from each other. Before the transaction is considered complete, the purchaser must put the funds in an escrow service and the sender must enter the courier tracking number into that same escrow. Time is of the essence and this developer doesn't want to worry about networking of infrastructure. This app must be fully autonomous or ''decentralized''.
Which architecture would best solve the product need?
