Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0439d172b5ede0d86490ec3a0f8dced1255eba3f60997174fe35cbe28b8c623b3b6a2db935342a61743839037a305fc8ab8561e3839f351cf891fd57f161e5b54a