Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 046c21c9a10a13c72f28571cf5adac51635f01d4601fbde167e091a8b54d4512492fad56a6f61c2a8f09fb86b44662ff7cece7c164bd1c176238ae7eb9060d6b99