Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 04b7421433e62bf73cf317364d30a14a1cc1a09a7b05b869fe0a101e16202a94972efc11cc6c14641ce8ca0dbc9ee66b34dabbfa30cbe7db81e3cb709d93310d31