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Latest commit 4d27dde May 27, 2019



By nature, IOTA transactions reference only two other transcations - which may not suffice in all cases. There are scenarios, for example like in qubic or when determining timestamps for transactions, where arbitrary data pieces need to be linked with arbitrary number of other data pieces. As specified by Paul Handy, an alternative, uniform solution for organizing data is required [1].

Graph.ixi is an IXI (IOTA eXtension Interface) module for the Iota Controlled agenT (Ict). It extends the core client with the functionality to link arbitrary data with any number of other data pieces. As a result, it circumvents the usual limit of transactions that can be referenced.

[1] Specification of Graph.ixi
[2] Documentation paper of Graph.ixi


Step 1: Install Ict

Please find instructions on iotaledger/ict.

Make sure you are connected to the main network and not to an island, otherwise you won't be able to message anyone in the main network.

Step 2: Get Graph.ixi

There are two ways to do this:

Simple Method

Go to releases and download the graph-{VERSION}.jar from the most recent release.

Advanced Method

You can also build the .jar file from the source code yourself. You will need Git and Gradle.

# download the source code from github to your local machine
git clone
# if you don't have git, you can also do this instead:
#   wget
#   unzip

# change into the just created local copy of the repository
cd graph.ixi

# build the graph-{VERSION}.jar file
gradle ixi

Step 3: Install Graph.ixi

Move graph-{VERSION}.jar to the modules/ directory of your Ict:

mv graph-{VERSION}.jar ict/modules

Step 4: Run Ict

Switch to Ict directory and run:

java -jar ict-{VERSION}.jar
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