Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0423342a8c51708b124ab7625406c7308558fccbef8acc52d4ca4ec7a8b67ab6157c39c576a7066662ee66e8fa6e056928f03a307c5c29fb49349be4ba551d2b12