PUBLIC MARKS with tags data & specification

you got a binary file and don't know its contents. Or some software creates binary files where you have a specification but don't want to decode them manually.

Synalyze It! allows you to create a grammar for binary files interactively. Unlike in regular hex editors or viewers the files are interpreted automatically for you!

The growing suite of SPARQL query services offer consumers an opportunity to merge data distributed across the web. A small number of extensions to SPARQL 1.1 enable expression of the merging queries. In particular, a SERVICE allows one to direct a portion of a query to a particular SPARQL query service, just as a GRAPH directs queries to particular named graphs. A BINDINGS keyword adds a compact syntax for tranfering results which constrain a query. The combination of these extensions allows one to compose a query which delegates parts of the query to a series of services. This specification defines the syntax and semantics of these extensions.

The Provenance Vocabulary provides classes and properties to describe the provenance of data from the Web. Hence, this vocabulary enables providers of Web data to publish provenance-related metadata about their data. The Provenance Vocabulary Core Ontology provides the main classes and properties required to describe provenance of data on the Web. Notice, this vocabulary is not designed to describe provenance of other kinds of content such as documents.