hasdai is a network of open access Invenio-based repositories which has been operating an experimental service since June 2018. It supports new research corpora from a growing number of key institutions in European countries and the U.S under the Data Futures Alliance (DFA) and, significantly, provides infrastructure for the redelivery of existing corpora which have become stranded on obsolete technologies. hasdai is supported by computing services - provider 'nodes' - made available by institutions under the Data Futures Alliance, though it is a peer-to-peer network which is not dependent on any particular providers. Moreover, multiple Institutional Guarantee (IG) agreements between participating institutions can be layered on top of hasdai with terms tailored to their individual needs. Until mid-2019 hasdai will continue in consultative operation before launching services for a new tier of user institutions and incorporating additional computing resources. hasdai aims to create a comprehensive platform for very long-term preservation of research data, especially where complex and heterogeneous corpora have arisen around digitized physical assets, for example in the humanities, and it seeks to reduce dependency on vulnerable technologies.

Invenio is an open source activity of CERN that has developed over multiple decades - originally in the context of scientific communication in the High Energy Physics community. The OpenAIRE project, commissioned by the European Commission to support its nascent Open Data policy led to development, using Invenio, of a catch-all repository for EC-funded research - called Zenodo. CERN is an OpenAIRE partner and pioneer in open source, open access and open data and is the developer and maintainer of Zenodo, which was launched in May 2013 and is based at CERN. Zenodo now welcomes research results from all over the world, and from every scientific discipline.

Both Zenodo and hasdai will employ a single consistent version of Invenio, which CERN will continue to develop and maintain. External plug-in Invenio functionality modules already developed and supported by third parties as well as by CERN will operate interchangeably with both platforms.