Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0400199af6a7aa5b81e489d4dfb52d1c229b6e201e495d9e48e040a76d7a19410533d9c3270fb6e14522fba5cf895110658dc73cf852868d729a5b56d6eefc593a