Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0421a14903c9c6069213b2b8fe7b6157f440bb19647ba1c885c71e16f2b023c9d0b55d3cac5ace5efcf4ea3d55fcb8c1189b32b2dca328b1c660416b59d5359668