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Visa推出新的Gas费支付解决方案

近日,全球信用卡品牌Visa推出了一种新的Gas费支付解决方案。这一方案旨在解决一些常见问题。

一般来说,以太坊用户会通过从交易所购买ETH,将其转移到钱包中来支付波动的Gas费。然而,这种方式存在一个问题:它经常会造成对Gas费所需ETH量的误判(过高或过低),最终会因误判致使简单的支付过程变得十分复杂。相比之下,Visa推出的实验性解决方案可以解决这个问题。新的Gas费解决方案让用户可以使用Visa卡来支付Gas费,这种新方法简化了Gas费的支付流程。

具体来说,Visa的解决方案是以太坊ERC-4337标准与“Paymaster”智能合约的结合。当用户通过钱包发起以太坊交易时,这个消息会被发送到Paymaster,而Paymaster的服务会计算gas费,并通过Cybersource向Visa收取费用。数字签名生成速度快、验证并由用户的钱包添加,然后发送到以太坊。在Paymaster验证签名后,燃料费将得到结算。

这种简化的程序让用户可以直接使用Visa卡在链下支付Gas费,而无需保留ETH仅用于支付费用。

值得注意的是,Visa最近通过开源工具如Stackup的userop.js库在以太坊Goerli测试网上测试了一种这种机制。这些测试交易成功地通过Paymaster覆盖了Gas费,避免了对ETH的需求。

这种创新方法不仅简化了个人用户的Gas费支付,而且还带来了更普遍的影响。商家和去中心化应用可能采用Paymaster系统,通过提供Visa卡Gas费支付来改善用户体验。此外,这一发展可能促使钱包和Paymaster服务提供商为燃料费提供Visa卡付款选项。

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