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• Persistent IDs for digital preservation (Bill)

*Requirements for an implementation*(John)

• We don't want to break any system currently used at CUL that uses persistent identifieres, such as the PURL server.  Backward compatible.
• Provide a mechanism for persistent ID's for OAI-PMH
• Optionally resolvable only within a constrained environment. Secured nameservice. For archiving.  The individual
• Can ensure confidentiallity.System should define a mechanism for client authentication/authorization to ensure data integrity and  authority control.
• It doesn't have dependencies on external systems in order to resolve local PIDs.
• Every PID should be globally unique.
• PID should be free of location semantics.
• PID must be able to refer to multiple aspects, attributes, or behaviors of the digital object, but with a default aspect that conforms with convential use.
• Globally resolvable.
• Fine-grained control of PIDs, so that groups can maintain their own sets, without having to maintain multiple PID resolvers/servers.

Methodology  (Adam S)*

• Overview of PID

• PURL
• ARK
• Handle
• OpenURL
• OAI-PMH requirements

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