Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04216f85141e7f5daeb248b731cd51cfe4d03b3d465a1a60ea59570120fc28ba1043c4ccb9b83e4c6135ce9753e63730b6eed8b0412e2f4a4fa5bf34a4bd787fad