Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 047b5c998914765c6c11f29f377685f35a693ff810133d9cdb6f8659bf38bebe225103606f17677e800b4789ad0d1243326221007d10485a98337740d3526ddb14