Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0439726596ee507b63aa9ab8c986a4eb6e57e119ef9b3b096407e7205246737f9a477cc2266e53924a1675548ad93621874de07563f02127a9fdfed19ea218ff0b