According to Odaily Planet Daily, Gitcoin Executive Director Kyle said on the X platform that he received many private messages asking why zkSync Stamp could not be verified. He explained that many of these people were using more than 5 addresses for mining. He also said that the Stamp information will be updated tomorrow. Earlier news, Gitcoin Passport launched a new version of the user verification tool ETH Stamp that can be used for witch detection in January this year. ETH Stamp can use on-chain transaction history to distinguish between real users and fake users. In the middle of this month, Gitcoin Passport has expanded the service to zkSync and launched zkSync Stamp.