Quantum exposed: this address has revealed its public key in a prior spend. A sufficiently powerful quantum computer could derive the private key.
pubkey 0421128cf29eda63bcecf96a9d27a183f2708a2a0e1bd574e28cff6e5ea2b5ca60d7f3e3aae86cb9e5b1a8269accdcbc9596318d6085771cf08051f7c684099cfd