Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0419b7a7836cc994922d245b0e3b8b66f42720ff6785f44ffd92bce0b906d27ef8d5629119727ea9c20770992e67ec7247074d4b23701e21713bec8ae2b16e0641