Q: What is ION, and who developed it?

A: ION is a self-sovereign identity system developed by the Decentralized Identity Foundation, with partial funding from Microsoft. It leverages blockchain technology to provide decentralized identity management.

Q: Is ION open-source?

A: Yes, ION is open-source and licensed under the Apache Software License 2.0, allowing for community contributions and modifications.

Q: What versions of ION have been released?

A: ION has released stable versions 1.0.0 (2021-01-22), 1.0.1 (2021-02-03), 1.0.2 (2021-06-01), 1.0.3 (2021-07-27), and 1.0.4 (2022-06-09).

Q: Where can I find the source code for ION?

A: The source code for ION is available on GitHub at [https://github.com/decentralized-identity/ion](https://github.com/decentralized-identity/ion).

Q: What is the official website for ION?

A: The official website for ION is [https://identity.foundation/ion/](https://identity.foundation/ion/).

ION

self-sovereign identity system with development partially funded by Microsoft

Product identity_management_system Q108755079

Facts

11 properties

Instance of: identity management system, software^[2]
Official website: identity.foundation^[10]
License: Apache Software License 2.0
Website: identity.foundation
Copyright license: Apache Software License 2.0^[4]
Copyright status: copyrighted^[13]
Developer: Decentralized Identity Foundation^[3]
Has characteristic: self-sovereign identity^[11]
Software version identifier: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4^[5]^[6]^[7]^[8]^[9]
Uses: blockchain^[12]
Version: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4

🏷️ Also known as

en ION

🔖 Identifiers · 1

Source code repository URL: github.com

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections

Apache Software License 2.0

Has characteristic 1

self-sovereign identity

Instance of 1

software

Uses 1

blockchain

Press Enter · cited answer in seconds

Summary

ION is an identity management system^[1].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ ION — instance of (P31): software. wikidata.org.
[3] ↑ ION — developer (P178): Decentralized Identity Foundation. wikidata.org.
[4] ↑ ION — copyright license (P275): Apache Software License 2.0. wikidata.org.
[5] ↑ ION — software version identifier (P348): 1.0.0. github.com. Retrieved 2024-04-14. github.com. Provenance: wikidata.org.
[6] ↑ ION — software version identifier (P348): 1.0.1. github.com. Retrieved 2024-04-14. github.com. Provenance: wikidata.org.
[7] ↑ ION — software version identifier (P348): 1.0.2. github.com. Retrieved 2024-04-14. github.com. Provenance: wikidata.org.
[8] ↑ ION — software version identifier (P348): 1.0.3. github.com. Retrieved 2024-04-14. github.com. Provenance: wikidata.org.
[9] ↑ ION — software version identifier (P348): 1.0.4. github.com. Retrieved 2024-04-14. github.com. Provenance: wikidata.org.
[10] ↑ ION — official website (P856): https://identity.foundation/ion/. techcommunity.microsoft.com. techcommunity.microsoft.com. Provenance: wikidata.org.
[11] ↑ ION — has characteristic (P1552): self-sovereign identity. wikidata.org.
[12] ↑ ION — uses (P2283): blockchain. wikidata.org.
[13] ↑ ION — copyright status (P6216): copyrighted. wikidata.org.

Class ancestry

[1] ↑ ION is an instance of identity management system (Q5988389) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). ION. Retrieved May 3, 2026, from https://4ort.xyz/entity/ion-q108755079

MLA “ION.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/ion-q108755079.

BibTeX

@misc{4ortxyz_ion-q108755079_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ION}}, year = {2026}, url = {https://4ort.xyz/entity/ion-q108755079}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ION — https://4ort.xyz/entity/ion-q108755079 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/ion-q108755079 · Last refreshed: May 3, 2026