Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04156e5121944fbc2357e86c0d78e6f1fe035ce5d6f63b8b4993b99a6e7b0ccd458512f7497eff575df323df4f7eb592be0a380e62228d3ed42c440c5f20dbebd2