Milestone Retrospect — Untangle Care

The full article was originally published by Sebastian Fuhrhop on Medium. Read the full article here.


As we conclude the second milestone of our “Untangle Care” project, we thought it would be a good opportunity to provide an update on what we have been working on.

As a reminder, the goal of this project is to develop IOTA-based tools that will allow healthcare data to flow between different healthcare stakeholders and systems (e.g., Electronic Medical Records, Internet of Medical Things devices, Personal Health Records, etc.) in a secure, patient-controlled and healthcare-interoperable way (using the Fast Healthcare Interoperable Resources — FHIR — standard).

The purpose of this article is not to describe every single component in detail, but rather to provide an overview and references to the achievements throughout this 6-month journey. The topics we will touch upon include:

  • Tangle.NET: C# IOTA client library
  • FHIR: GDPR, documentation, and Synthea
  • Logging: IOTA + IPFS based logging system


As some of you might be aware, Tangle.NET is a C# IOTA client library, which got three major updates in the last milestone, being:


When the milestone began, the C# MAM library was not compatible with the javascript implementation. This has been changed to compatibility not only to the javascript MAM implementation but also to mam.ts.

IOTA Area Codes (IAC)

“IACs are a method for tagging IOTA transactions with a geo-location, which allows them to be fetched, based on their location.” You are now able to use IAC from C# (.NET standard only), using the corresponding NuGet package.


The ZMQ module allows you to subscribe to events happening in an IRI node. You can read more about that here. This will enable C# IOTA applications to be developed in a “Hollywood Principle” manner. The package is available for .NET 4.6.1 and .NET standard.

In addition to that, you are now able to use PatriQs’ documentation to kick-start your IOTA development. Besides covering the basics of Tangle.Net, it gives an excellent overview of IOTA for beginners as well.

Read the full Article

The full article was originally published by Sebastian Fuhrhop on Medium, where people are continuing the conversation by highlighting and responding to this story.

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