Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04164e8164e5968511c84a2dea5b6f261db0fc25c5200cfd1e9d39bb915432094dce862f468317a4177423585f553be6a83edc9cb389095fe9fbdabd81391ee619