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Drive the evolution of the internet towards open and interoperable Web 4.0 and Virtual Worlds: building blocks in priority areas (Virtual Worlds Partnership)
Funding Program
Horizon Europe: Cluster 4 - Digital, Industry and Space
Call number
HORIZON-CL4-2025-03-HUMAN-16
deadlines
Opening
10.06.2025
Deadline
02.10.2025 17:00
Funding rate
100%
Call budget
€ 14,500,000.00
Estimated EU contribution per project
between € 1,000,000.00 and € 3,000,000.00
Link to the call
Link to the submission
Call content
short description
The aim of this topic is to advance the evolution of the internet towards open and interoperable Web 4.0 enabling Virtual Worlds, ensuring seamless user experience navigating across platforms by increasing the take up of digital commons technologies and other Open Source solutions in Europe. The action will thus leverage the strong and active community of European Open Source innovators that can contribute to relevant digital commons to deliver on key features of virtual worlds.
Call objectives
This topic will support early demonstrations for Web 4.0 and its architectural framework, through the use of key building blocks where there is sufficient level of maturity and critical mass of commons contributors (such as in the context of the Next Generation Internet initiative).
The envisaged Web 4.0 shall be powered by open and decentralised technologies enabling interoperability between platforms and networks and freedom of choice for the users. It should be developed through Open Source / digital commons and tackle security, scalability and sustainability at the core of the technological developments.
Applicants should define the mechanisms for contributing to and aligning with the strategic roadmap for research and innovation and the architectural Framework as it becomes available from the specific separate support action HORIZON-CL4-2025-03-HUMAN-17: Specific support for the Virtual Worlds Partnership and the Web 4.0 initiative (CSA).
Applicants should devise appropriate mechanisms for cooperating with the other projects under this action to ensure that they work in a coherent way towards the vision of an open, interoperable Web 4.0
At least one proposal in each of the area defined below will be selected. Proposals should clearly identify the area they are addressing.
Area 1: Identity management
Proposals will support and facilitate the deployment and adoption of the EU Digital Identity Wallet with the testing, community development and packaging of Open Source solutions for the issuance and verification of electronic attestations and the provision of eIDAS trust services. The aim is to deliver a diversity of Open Source digital solutions and services in accordance with the European digital rights and principles, empowering citizens with the freedom of choice from many secure digital identity solutions that are aligned with the EU regulations. Additionally, to foster and support enterprises to harness the benefits of the EUDI wallet and the eIDAS trust services. Examples may include the implementation of EUDI wallets for Open Source operating systems, like Linux (for enterprise servers), cloud-based wallets, laptop-based wallets, Open Source Operating System for mobile devices. Furthermore, technical solutions and services for secure and anonymous digital payments and money transfers between people, solutions for the implementation for attestation issuers and verifiers and the eIDAS trust services with a focus on the development of Open Source stacks for issuers and relying parties (for issuing and verifying electronic attestations), especially as/for cloud services. When relevant, proposals may address the validation of physical documents, either IDs or other types of identity-related documents, such as breeder documents.
Area 2: Software Supply Chain security
Trusted frameworks are essential to keep the software supply chain secure, as demonstrated by the recent attack on XZ Utils. The aim is to strengthen the security of the software supply chain by leveraging related NGI building blocks and package solutions for example for traceability of code, collaborative trust models among contributors and users, detection of anomalous behaviour, construction of software bill of material. Use cases include developers and users of codes, DevSecOps team, corporate IT, Open Source projects, industry and/or parties that need to be compliant with the Cyber Resilience Act.
Area 3: Open Hardware
Open Hardware is key for supporting trust and sovereignty as it allows users to inspect, modify, and implement freely the designs. The aim is to support the uptake of Open Hardware chips and tools through prototyping, productization and integration in real life cases. Proposals can address several re-usable tools and components such as controllers, processors, or network chips. Use cases include consumer devices for immersive virtual worlds, industry applications, consumer devices, smart cities.
Area 4: Alternative solutions to centralised platforms
As EU legislation places obligations on platforms, particularly focusing on gatekeepers, it is important to prioritize nurturing and enriching credible alternatives. Proposals in this area could cover integrating, testing and operation of Open Source decentralised solutions offering credible alternatives to users supporting the emergence of Web 4.0 and Virtual Worlds experience. Examples include instant messaging, application stores, or productivity groupware that should showcase virtual worlds interoperability, trust, resilience, and scalability. The focus should be made on decentralised and federated solutions based on interoperability requirements and on open standards to ensure to not only meet regulatory demands but also foster a more open, diverse, resilient, and competitive digital ecosystem.
Area 5: Web 4.0 demonstration for Virtual Worlds
Web 4.0 technologies enabling interoperability and transferability across platforms are crucial to ensure various players to contribute to virtual worlds as opposed to a mono-provider environment. This area will make use of existing Open Source building blocks for ensuring trust, interoperation, interconnection, transaction (including tokens), and resource access in Virtual Worlds applications and services. Proposals will aim at integrating the various building blocks, with a special focus on interoperability and will demonstrate seamless interactions (for example when browsing and searching across multiple providers) in one or two selected scenarios.
For all areas, proposals should innovate beyond the state-of-the-art and could include development, integration, testing, deployment, uptake, and operations activities.
Proposals should encourage, when relevant, open access to data, standardisation activities, as well as an IPR regime and sustainability model ensuring lasting impact and reusability of results.
This topic implements the co-programmed European Partnership on Virtual Worlds.
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Expected results
Project results are expected to contribute to the following expected outcomes:
- An early demonstration of the future Web 4.0 architectural framework (including protocols and standards) made up of key Open Source internet building blocks in priority areas: identity, software supply chain, open hardware, decentralised solutions & virtual worlds.
- The emergence of open and interoperable Web 4.0 and Virtual Worlds supported by EU based internet ecosystems centred on EU values and regulatory framework with high socio-economic impact, through the application of digital commons technologies and other Open Source solutions and open standards in several use cases.
- Supporting the transition from today’s internet towards Web 4.0 where end-users have access to a more personalised and interactive experience through more collaborative, decentralised and user-centred approaches. Special attention will have to be given to security, scalability, and accessibility issues.
- New business opportunities and the emergence of new business and sustainability models based on Open Source.
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Eligibility Criteria
Regions / countries for funding
Moldova (Moldova), Albania (Shqipëria), Armenia (Հայաստան), Bosnia and Herzegovina (Bosna i Hercegovina / Босна и Херцеговина), Canada, Faeroes (Føroyar / Færøerne), Georgia (საქართველო), Iceland (Ísland), Israel (ישראל / إِسْرَائِيل), Kosovo (Kosova/Kosovë / Косово), Montenegro (Црна Гора), Morocco (المغرب), New Zealand (Aotearoa), North Macedonia (Северна Македонија), Norway (Norge), Serbia (Srbija/Сpбија), Switzerland (Schweiz/Suisse/Svizzera), Tunisia (تونس /Tūnis), Türkiye, Ukraine (Україна), United Kingdom
eligible entities
EU Body, Education and training institution, Non-Profit Organisation (NPO) / Non-Governmental Organisation (NGO), Other, Private institution, incl. private company (private for profit), Public Body (national, regional and local; incl. EGTCs), Research Institution incl. University, Small and medium-sized enterprise (SME)
Mandatory partnership
Yes
Project Partnership
To be eligible for funding, applicants must be established in one of the following countries:
- the Member States of the European Union, including their outermost regions
- the Overseas Countries and Territories (OCTs) linked to the Member States
- countries associated to Horizon Europe - see list of particpating countries
Only legal entities forming a consortium are eligible to participate in actions provided that the consortium includes, as beneficiaries, three legal entities independent from each other and each established in a different country as follows:
- at least one independent legal entity established in a Member State; and
- at least two other independent legal entities, each established in different Member States or Associated Countries.
Any legal entity, regardless of its place of establishment, including legal entities from non-associated third countries or international organisations (including international European research organisations) is eligible to participate (whether it is eligible for funding or not), provided that the conditions laid down in the Horizon Europe Regulation have been met, along with any other conditions laid down in the specific call topic.
A ‘legal entity’ means any natural or legal person created and recognised as such under national law, EU law or international law, which has legal personality and which may, acting in its own name, exercise rights and be subject to obligations, or an entity without legal personality.
Specific cases:
- Affiliated entities (i.e. entities with a legal or capital link to a beneficiary which participate in the action with similar rights and obligations to the beneficiaries, but which do not sign the grant agreement and therefore do not become beneficiaries themselves) are allowed, if they are eligible for participation and funding.
- Associated partners (i.e. entities which participate in the action without signing the grant agreement, and without the right to charge costs or claim contributions) are allowed, subject to any conditions regarding associated partners set out in the specific call conditions.
- Entities which do not have legal personality under their national law may exceptionally participate, provided that their representatives have the capacity to undertake legal obligations on their behalf, and offer guarantees to protect the EU’s financial interests equivalent to those offered by legal persons.
- Legal entities created under EU law (EU bodies) including decentralised agencies may be part of the consortium, unless provided for otherwise in their basic act.
- International European research organisations are eligible to receive funding. International organisations with headquarters in a Member State or Associated Country are eligible to receive funding for ‘Training and mobility’ actions or when provided for in the specific call/topic conditions. Other international organisations are not eligible to receive funding, unless provided for in the specific call/topic conditions, or if their participation is considered essential for implementing the action by the granting authority.
- Joint Research Centre (JRC)— Where provided for in the specific call conditions, applicants may include in their proposals the possible contribution of the JRC but the JRC will not participate in the preparation and submission of the proposal. Applicants will indicate the contribution that the JRC could bring to the project based on the scope of the topic text. After the evaluation process, the JRC and the consortium selected for funding may come to an agreement on the specific terms of the participation of the JRC. If an agreement is found, the JRC may accede to the grant agreement as beneficiary requesting zero funding or participate as an associated partner, and would accede to the consortium as a member.
- Associations and interest groupings — Entities composed of members (e.g. European research infrastructure consortia (ERICs)) may participate as ‘sole beneficiaries’ or ‘beneficiaries without legal personality’. However, if the action is in practice implemented by the individual members, those members should also participate (either as beneficiaries or as affiliated entities, otherwise their costs will NOT be eligible.
- EU restrictive measures — Entities subject to EU restrictive measures under Article 29 of the Treaty on the European Union (TEU) and Article 215 of the Treaty on the Functioning of the EU (TFEU) as well as Article 75 TFEU, are not eligible to participate in any capacity, including as beneficiaries, affiliated entities, associated partners, third parties giving in-kind contributions, subcontractors or recipients of financial support to third parties (if any).
- Legal entities established in Russia, Belarus, or in non-government controlled territories of Ukraine — Given the illegal invasion of Ukraine by Russia and the involvement of Belarus, there is currently no appropriate context allowing the implementation of the actions foreseen in this programme with legal entities established in Russia, Belarus, or in non-government controlled territories of Ukraine. Therefore, even where such entities are not subject to EU restrictive measures, such legal entities are not eligible to participate in any capacity. This includes participation as beneficiaries, affiliated entities, associated partners, third parties giving in-kind contributions, subcontractors or recipients of financial support to third parties (if any). Exceptions may be granted on a case-by-case basis for justified reasons.
With specific regard to measures addressed to Russia, following the adoption of the Council Regulation (EU) 2024/1745 of 24 June 2024 (amending Council Regulation (EU) No 833/2014 of 31 July 2014) concerning restrictive measures in view of Russia’s actions destabilising the situation in Ukraine, legal entities established outside Russia but whose proprietary rights are directly or indirectly owned for more than 50% by a legal person, entity or body established in Russia are also not eligible to participate in any capacity. - Measures for the protection of the Union budget against breaches of the principles of the rule of law in Hungary — Following the Council Implementing Decision (EU) 2022/2506, as of 16 December 2022, no legal commitments can be entered into with Hungarian public interest trusts established under the Hungarian Act IX of 2021 or any entity they maintain. Affected entities may continue to apply to calls for proposals and can participate without receiving EU funding, as associated partners, if allowed by the call conditions. However, as long as the Council measures are not lifted, such entities are not eligible to participate in any funded role (beneficiaries, affiliated entities, subcontractors, recipients of financial support to third parties, etc.).In case of multi-beneficiary grant calls, applicants will be invited to remove or replace that entity in any funded role and/or to change its status into associated partner. Tasks and budget may be redistributed accordingly.
other eligibility criteria
Subject to restrictions for the protection of European communication networks.
Additional information
Topics
Relevance for EU Macro-Region
EUSDR - EU Strategy for the Danube Region, EUSBSR - EU Strategy for the Baltic Sea Region, EUSALP - EU Strategy for the Alpine Space, EUSAIR - EU Strategy for the Adriatic and Ionian Region
UN Sustainable Development Goals (UN-SDGs)
project duration
24 to 36 months
Additional Information
Applications must be submitted electronically via the Funders & Tenders Portal electronic submission system (accessible via the topic page in the Search Funding & Tenders section). Paper submissions are NOT possible.
Applications must be submitted using the forms provided inside the electronic submission system (not the templates available on the topic page, which are only for information). The structure and presentation must correspond to the instructions given in the forms.
Applications must be complete and contain all parts and mandatory annexes and supporting documents.
The application form will have two parts:
- Part A (to be filled in directly online) contains administrative information about the applicant organisations (future coordinator and beneficiaries and affiliated entities), the summarised budget for the proposal and call-specific questions;
- Part B (to be downloaded from the Portal submission system, completed and then assembled and re-uploaded as a PDF in the system) contains the technical description of the project.
Annexes and supporting documents will be directly available in the submission system and must be uploaded as PDF files (or other formats allowed by the system).
The limit for a full application (Part B) is 45 pages.
To ensure a balanced portfolio covering all the areas described in the scope, grants will be awarded to applications not only in order of ranking but at least also to one application that is the highest ranked within each area, provided that the applications attain all thresholds.
Beneficiaries may provide financial support to third parties. The support to third parties can only be provided in the form of grants. The maximum amount to be granted to each third party is EUR 150 000. This is justified by the possibility for a third party to participate in several calls during the full duration of the pilot. A maximum of 15% of the total requested EU contribution may be allocated to financial support to third parties, selected through open calls.
Call documents
Horizon Europe Work Programme 2025 Cluster 4 - Digital, Industry and SpaceHorizon Europe Work Programme 2025 Cluster 4 - Digital, Industry and Space(kB)
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