What's the meaning of the message? "1E9YwDtYf9R29ekNAfbV7MvB4LNv7v3fGa" is just an address with ~2mBTC. Could you sign another message? Preferably this one: "Today is December 4th, 2022, and I sign for topic #5421158". Also, "1NChfewU45oy7Dgn51HwkBFSixaTnyakfj" was paid in public key (block 1,018), so I'd expect a public key instead of an address. How did you end up with the address anyway (I've checked blockchair, and you're right).