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Use IPLD as a JSON syntax for claim #261

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Use IPLD as a JSON syntax for claim #261

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b0ec22f
added IPLD as JSON syntax choice
jonnycrunch Oct 29, 2018
a3d1090
added creator to example
jonnycrunch Oct 29, 2018
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Expand Up @@ -2148,6 +2148,51 @@ <h2>JSON-LD</h2>

</section>

<section>
<h2>IPLD</h2>

<p>
Content addressing through hashes has become a widely-used means of connecting
data in distributed systems. <a href="https://ipld.io">IPLD</a> is a way of representing
hash-linked data to be used in content-addressed data retrieval systems such as
<a href="https://ipfs.io">IPFS</a>. Other content that can be resolved using IPLD include
blockchains such as Bitcoin, Ethereum, ZCash and Git repositories. IPLD enables
creation of decentralized data-structures that are universally addressable facilitating
resolving content accross different protocols. It achieves this through an interoperable
data model that represents various protocol formats. IPLD relies on self-describing
<a href="https://github.com/ipld/cid">Content Identifiers (CIDs)]</a> for content addressing.
CIDs are a self-describing, flexible, and interoperable way of expressing cryptographic hashes.
It uses several multiformats to achieve flexible self-description, namely
<a href="https://github.com/multiformats/multihash"> multihash </a> for hashes,
<a href="https://github.com/multiformats/multicodec"> multicodec </a> for data content types, and
<a href="https://github.com/multiformats/multibase">multibase </a> to represent the base encoding
of the CID itself. This interoperability makes IPLD a valuable structure for the DID document
that can be used across a variety of DID methods or distributed ledgers and
ensures cryptographic validity of the DID document. Since both IPLD and JSON-LD
are 100% compatible with JSON, the large number of JSON parsers and libraries are already available.
</p>
<p>
The key symbol <code>"/"</code> (foward slash) SHOULD be reserved to represent a self describing
content indentifier (CID) for content addressing resolved using
<a href="https://github.com/ipld/specs">Interplanetary Linked Data (IPLD)</a>.
</p>

<p>The following example demonstrates how one could
express this data model using IPLD.</p>

<pre class="example" title="A verifiable claim with @context and creator of the claim as linked data using IPLD">
{ "@context" :
{ "/" : "zdpuAmoZixxJjvosviGeYcqduzDhSwGV2bL6ZTTXo1hbEJHfq" },
...
"creator" :
{ "/" : "zdpuAvqt1YTeAdcyyncBDdJLVgKyZNbHm17rBEJNqFzVbg24B" }
...
}
</pre>

</section>


</section>

<section>
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