Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 041c643f984073948ab140309149fcf11646f9da3f95068ef286aea509022c249a146037cbc8447ab3fbef7862daff6647c67388d0f1fe34f9a72fe689967aa4b5