Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0491c5f918a52a6693d9d23f7e3883ddeab2d1f5b1d089b95dbcdfdfa4f5e8ef0817c54e3384d7a31a3985ff08cc9e2c4e56bdc17ed4f19694fc1999a6db84256c