Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0421e77bb449ddb629bdfa0948b74d5e751ab7f11a880aa3fc368dffb6318150069ce07c6a89da290c5c2e4aabe6974af128cbdeb5c37f8d8716e9dc8bcfef50c7