Extending OAI-PMH over structured P2P networks for digital preservation. Everton F. R. Seára, et al. International Journal on Digital Libraries. July 2012. [PDF]
An older but interesting article about OAI-PMH and peer to peer networks for preservation. OAI-PMH is a protocol for harvesting metadata from repositories that store digital objects with structured metadata. Since only metadata is shared there is no digital data preservation and digital objects can be easily lost. An alternative to digital preservation of content is to replicate the information in multiple storage repositories for a long-term data preservation environment that ensures reliability and availability of their objects. The article looks at using a proposed OAI-PMH extension to work over a distributed system that can replicate a digital object between nodes in a distributed P2P archiving system.
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