@Override
        public String toString() {
            return "TSDMetas [parseBuilt=" + parseBuilt + ", emitDate=" + emitDate + ", policyId=" +
                    policyId + ", serialNumber=" + serialNumber + ", tsa=" + tsa + ", algorithm=" +
                    algorithm + ", parsedDate=" + parsedDate + "]";
        }
Tika parser for Time Stamped Data Envelope (application/timestamped-data)
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-crypto-module/src/main/java/org/apache/tika/parser/crypto/TSDParser.java