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The INSPIRE persistent identifiers (PIDs) need to outlive identified resources for evident reasons (e.g. to avoid recycling former identifiers for identifying new resources). INSPIRE PIDs are defined by a unique namespace, a local identifier and an optional version identifier. The length of the effective persistence of local identifiers in each data provider depends on the nature of the provided information and its financial, technical and governance constraints. The INSPIRE PIDs are used to identify spatial datasets and individual spatial objects and may be used by different kinds of applications (territorial planning, environmental pressure, risk management, etc.) to reference them. If we really want third parties to use INSPIRE PIDs, they must be trustable and long-term persistent. These features imply, for example, that any INSPIRE PID used in external applications may be involved in a future process that will use that PID to obtain up-to-date and reliable data or metadata about the identified resource (e.g. its geometry, its present status) no matter whether the resource is now in a cold data storage or its original data provider has long ceased its operations. Are we ready for minting resolvable PIDs for thousands of spatial datasets and billions of spatial objects in Europe and fulfil the user requirements regarding long-term persistence and trust? This challenge may be addressed by national INSPIRE URI frameworks characterised by a common http URI schema and a policy for INSPIRE PIDs, a common Persistent Identifier Management System (PIMS), possibly coordinated with local registers and resolvers, and a governance system. The http scheme for the implementation of PIDs must be aligned with legally binding national URI frameworks for open data. The PIMS must provide a register of INSPIRE namespaces, automatically harvest local identifiers from INSPIRE download services, mint PIDs from them, verify INSPIRE services are still live and return the correct resources, resolve PIDs into resource representations, update PIDs resolution when a resource is moved by technical or governance causes and archive PIDs when an INSPIRE resource becomes definitely offline. Archiving ensures long persistence because the resolution of PIDs will give access to at least archived metadata. Finally, the governance system must promote the adoption of the http URI schema and policy and the maintenance in the long term of the common PIMS. This submission will show the progress made so far in the development of such solution in Spain, which include a PIMS prototype online since October 2016.
Topic Area: [2.3] Technologies and tools to support implementing, using and assessing the technical implementation of INSPIRE Abstract Type: Oral Presentation
Comments: PID, Persistent identifiers, Persistent Identifier Management System
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