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< section id = "containers" >
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< span id = "id1" > < / span > < h2 > < span class = "section-number" > 5.1. < / span > Containers< a class = "headerlink" href = "#containers" title = "Permalink to this heading" > #< / a > < / h2 >
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< div class = "admonition important" >
< p class = "admonition-title" > Important< / p >
< p > Ya this seems like the right set of ideas to build on< / p >
< ul class = "simple" >
< li > < p > < a class = "reference external" href = "https://www.w3.org/TR/json-ld11-framing/" > https://www.w3.org/TR/json-ld11-framing/< / a > < / p > < / li >
< li > < p > < a class = "reference external" href = "https://w3c.github.io/rdf-canon/spec/#introduction" > https://w3c.github.io/rdf-canon/spec/#introduction< / a > < / p > < / li >
< / ul >
< / div >
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< ul class = "simple" >
< li > < p > Packets of LD-triplets that contain< / p >
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< ul >
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< li > < p > Hash of triplets< / p > < / li >
< li > < p > Encryption Info (if applicable)< / p > < / li >
< li > < p > Permissions scope< / p > < / li >
< li > < p > Signature< / p > < / li >
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< / ul >
< / li >
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< li > < p > Anything that can be directly referenced without local qualifier is a container.< / p >
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< ul >
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< li > < p > Triplets within a container can be referenced with the < a class = "reference internal" href = "querying.html#qlocation" > < span class = "std std-ref" > query syntax< / span > < / a > < / p > < / li >
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< / ul >
< / li >
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< li > < p > Containers also behave like “feeds”< / p >
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< ul >
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< li > < p > Eg. one might put their blog posts in < code class = "docutils literal notranslate" > < span class = "pre" > @ user:blog< / span > < / code > or< / p > < / li >
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< / ul >
< / li >
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< li > < p > The account identifier is the top-level container.< / p > < / li >
< li > < p > Ordering:< / p >
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< ul >
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< li > < p > Every triple within a scope is ordered by default by the time it is declared< / p > < / li >
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< li > < p > A container can declare its ordering (see < a class = "reference internal" href = "definitions.html#term-Container" > < span class = "xref std std-term" > Container< / span > < / a > )< / p > < / li >
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< / ul >
< / li >
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< li > < p > Naming:< / p >
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< ul >
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< li > < p > Each container intended to be directly referenced SHOULD contain a < code class = "docutils literal notranslate" > < span class = "pre" > name< / span > < / code > so it can be referenced w.r.t its parent: < code class = "docutils literal notranslate" > < span class = "pre" > @ < ACCOUNT> :< name> < / span > < / code > < / p > < / li >
< li > < p > Each container can also be indicated numerically< / p > < / li >
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< / ul >
< / li >
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< li > < p > Identity: Each container is uniquely identified by the hash of its contents and the hash of the account identifier.< / p > < / li >
< li > < p > Format: A container can specify one or several ways it can be displayed< / p > < / li >
< li > < p > Capabilities: A container can specify different capabilities that another account can take (eg. “Like”, “Upvote”, “Reply”)< / p >
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< ul >
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< li > < p > Capabilities should also contain a permissions scope, if none is present, the global scope is assumed.< / p > < / li >
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< li > < p > Since Identities are just a special form of container, they too can advertise different actions that they support with capabilities.< / p > < / li >
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< / ul >
< / li >
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< li > < p > Basically a container is a merkle DAG with binary data at its leaves a la the < span class = "target" id = "index-0" > < / span > Linked Data; Platform< / p > < / li >
< li > < p > Re: Ordering - < a class = "reference external" href = "https://github.com/ssbc/ssb-tangle" > https://github.com/ssbc/ssb-tangle< / a > < / p > < / li >
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< / ul >
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< p > Re hashing a graph: the container always has one root node that is the container’ < span class = "target" id = "index-1" > < / span > Merkle DAG is then constructed starting from the leaves.< / p >
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< / section >
< section id = "triplets" >
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< h2 > < span class = "section-number" > 5.2. < / span > Triplets< a class = "headerlink" href = "#triplets" title = "Permalink to this heading" > #< / a > < / h2 >
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< ul class = "simple" >
< li > < p > Triplet format< / p >
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< ul >
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< li > < p > Objects require a shortname that can be hierarchically indexed from< / p > < / li >
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< / ul >
< / li >
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< li > < p > Types/Schema< / p > < / li >
< li > < p > Including intrinsic notion of nesting< / p >
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< ul >
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< li > < p > every object can have blank/positionally indexed children< / p > < / li >
< li > < p > every triple can have blank/positionally indexed “qualifiers” like RDF-star or wikidata’ < / p > < / li >
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< / ul >
< / li >
< / ul >
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< / section >
< section id = "schema" >
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< h2 > < span class = "section-number" > 5.3. < / span > Schema< a class = "headerlink" href = "#schema" title = "Permalink to this heading" > #< / a > < / h2 >
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< / section >
< section id = "codecs" >
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< h2 > < span class = "section-number" > 5.4. < / span > Codecs< a class = "headerlink" href = "#codecs" title = "Permalink to this heading" > #< / a > < / h2 >
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< p > See IPLD Codecs and Linked Data Platform spec< / p >
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< p > Means of interacting with binary data.< / p >
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< p > Describes< / p >
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< ul class = "simple" >
< li > < p > Format< / p > < / li >
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< li > < / li >
< / ul >
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< / section >
< section id = "versioning" >
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< h2 > < span class = "section-number" > 5.5. < / span > Versioning< a class = "headerlink" href = "#versioning" title = "Permalink to this heading" > #< / a > < / h2 >
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< ul class = "simple" >
< li > < p > A given container has an identity hash from its first packing< / p > < / li >
< li > < p > A given triple can be contained by< / p > < / li >
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< / ul >
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< / section >
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< section id = "canonicalization" >
< h2 > < span class = "section-number" > 5.6. < / span > Canonicalization< a class = "headerlink" href = "#canonicalization" title = "Permalink to this heading" > #< / a > < / h2 >
< ul class = "simple" >
< li > < p > < a class = "reference external" href = "https://w3c.github.io/rdf-canon/spec/#introduction" > https://w3c.github.io/rdf-canon/spec/#introduction< / a > < / p > < / li >
< li > < p > < a class = "reference external" href = "https://json-ld.org/spec/ED/rdf-graph-normalization/20111016/" > https://json-ld.org/spec/ED/rdf-graph-normalization/20111016/< / a > < / p > < / li >
< li > < p > < a class = "reference external" href = "https://www.w3.org/TR/json-ld11-framing/" > https://www.w3.org/TR/json-ld11-framing/< / a > < / p > < / li >
< / ul >
< / section >
< section id = "compare-to" >
< h2 > < span class = "section-number" > 5.7. < / span > Compare to:< a class = "headerlink" href = "#compare-to" title = "Permalink to this heading" > #< / a > < / h2 >
< ul class = "simple" >
< li > < p > < span class = "target" id = "index-2" > < / span > CORAL - < a class = "reference external" href = "https://github.com/jmchandonia/CORAL" > https://github.com/jmchandonia/CORAL< / a > < / p >
< ul >
< li > < p > Good idea, also making use of extended context. Very focused on scientific data - ‘ ’ < / p > < / li >
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< li > < a class = "reference internal" href = "#" > 5. Data Structures< / a > < ul >
< li > < a class = "reference internal" href = "#containers" > 5.1. Containers< / a > < / li >
< li > < a class = "reference internal" href = "#triplets" > 5.2. Triplets< / a > < / li >
< li > < a class = "reference internal" href = "#schema" > 5.3. Schema< / a > < / li >
< li > < a class = "reference internal" href = "#codecs" > 5.4. Codecs< / a > < / li >
< li > < a class = "reference internal" href = "#versioning" > 5.5. Versioning< / a > < / li >
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< li > < a class = "reference internal" href = "#canonicalization" > 5.6. Canonicalization< / a > < / li >
< li > < a class = "reference internal" href = "#compare-to" > 5.7. Compare to:< / a > < / li >
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