OpenSearch (https://opensearch.org/)
Copyright OpenSearch Contributors

This product includes software developed by
Elasticsearch (http://www.elastic.co).
Copyright 2009-2018 Elasticsearch

This product includes software developed by The Apache Software
Foundation (http://www.apache.org/).

This product includes software developed by
Joda.org (http://www.joda.org/).

This product includes software developed by
Morten Haraldsen (ethlo) (https://github.com/ethlo) under the Apache License, version 2.0.