Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04639842d0b15b89187f3bbca480106a8f2138d0775c66cf06e6def5a9cb545b9fbaa315afaf1bda10043881b9da0ff34ec4b61a181b4cd2327715d02be73296c1