Specifically,
Specifically,a16z found a fully on-chain way to check that a merge has occurred.The method is to check the "difficulty" (DIFFICULTY) command of the EVM, which is a measure of how difficult it is for a specific block to be dug out. This concept only makes sense in the context of PoW consensus, since the consensus will switch to PoS, by checking this "difficulty" value of newly generated blocks, smart contracts can automatically determine whether a merge has occurred.
Going back to Proof of Merge, the NFT will output different metadata and illustrations according to the change of the "difficulty" value and the estimated time of merging, and will present three different states in three different stages in total.In the first stage, the pre-merge will show two separate circles; in the second stage, as the merge approaches, the two circles will begin to move closer together until they overlap, creating an eclipse-like image; once the merge occurs, the shape will transform into In its final form, a yin-yang symbol.
Odaily note: a16z also mentioned that for potential PoW chains, it is expected that the graph will stall in the second phase, because the "difficulty" value will never reach the requirements of the third phase, so it will never form the final shape.
Currently, Proof of Merge has opened free casting, interested friends can pass "https://www.proofofmerge.xyz/” page for free.
After opening the above website, connect to the wallet, slide the slider in the picture below from the far left to the far right, and then confirm the transaction in the wallet (the gas will cost about a few dollars).
The number of Proof of Merge is unlimited and completely free, but it can only be claimed before the Ethereum merger is completed. Up to now, tens of thousands of encrypted wallet addresses have participated in the casting.
It is worth mentioning that Proof of Merge is not tradable, and the NFT will be permanently bound to the minting address, so it is not necessary to speculate and profit through this NFT, but for those interested in witnessing the merger, one of the most important events in the history of cryptocurrency For a friend, you can still buy one as a souvenir.
