Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 047421e9f65f0e8d56aeb12e4da656ec39f0a1b6515f9c0697e60e09133927046917e4a6292cbfb06184cdc072a9312bda9e3d69e3ae0b21045bb1acc9eb550736