Looks like someone is spamming the mempool with 546sat transactions? Some of which are invalid

nostr:npub1dergggklka99wwrs92yz8wdjs952h2ux2ha2ed598ngwu9w7a6fsh9xzpc

nostr:npub1pyp9fqq60689ppds9ec3vghsm7s6s4grfya0y342g2hs3a0y6t0segc0qq

nostr:npub1guh5grefa7vkay4ps6udxg8lrqxg2kgr3qh9n4gduxut64nfxq0q9y6hjy