There's a big push within the UK government right now, helped along by the appointment of Tim Berners-Lee, to publish their data using Linked Data principles.

One of the challenges is how to publish Linked Data in a world that sometimes, even frequently, changes. Cool URIs don't change, but departmental domain names do, as departments are split and merged and rebranded. So the URIs that are minted for things like schools and roads need to be detached from the departments that have responsibility for them, neutralised into general domains such as education.data.gov.uk and transport.data.gov.uk.

But that's the least of the problems. Because schools and roads themselves don't remain static either. They are split and merged and rebranded. They are resources that change over time. What should their URIs look like?

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