Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 046c21cd9e5bcb9ad6dc1a28c66b81398e0cfdceec5860e4520f0da095471cc839ba67cfcc76ae3f6f7abb7c16e2b71012c947abe2631c868a85dbff066922c7f0