Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0420b0c43784a3d07e7036cc268378fb47b3c630623bd80f8735edd86b506ac0cb1817c600bf544d353f2e39e7456507ca47c53a85252959e6d6fd4669222522f1