This first dress rehearsal for the planned switch to proof-of-stake on Ethereum’s testnet sets the tone.
On Wednesday, the first dress rehearsal for the upcoming Merge on the Ethereum blockchain went well.
The Ropsten test network (testnet) successfully fused its proof-of-work execution layer with the Beacon Chain proof-of-stake consensus chain. This is a process that will be repeated in a few months on the main Ethereum network (if all goes well).
The Merge is a long-awaited step toward a new proof-of-stake consensus mechanism for Ethereum. At the moment, Ethereum is based on proof-of-work (PoW). Miners put in time and effort to find new blocks and add them to the blockchain. In exchange, they get newly created ether (ETH) and a share of transaction fees and tips. After Ethereum changes from PoW to PoS, validators who have staked the required 32 ETH will be in charge of adding new blocks to the blockchain.
The Beacon Chain is now working alongside the PoW chain.The Beacon Chain is a PoS coordination chain in which validators are already building and validating new blocks along with the PoW execution chain. After the PoS chain has been carefully checked out and made safe, the two chains will connect, but Ethereum will still work as a PoS blockchain.
Due to how complicated this change to Ethereum’s technology is, it needs to be tested on more than one testnet. Ropsten’s merge is the first of its kind, and the results will help developers figure out what to do next as they get closer to the real Merge on the mainnet.
In the coming months, there will likely be several testnet merges on Goerli and Seoplia.
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