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1. Current OCFL client does copy and not move.  Move is riskier.
   1. mv will perform better
   2. Peter Winckles  can add a mv option, but it must be recognized that there is some risk.
2. Checksumming: currently 2 checksumming operations are required by the client - a checksum could be provided to reduce that to 1  checksum calc.
   1. Peter Winckles  can add support for providing a checksum upfront .thus limiting the number of checksumming operations per ocfl version to 2 (once on transmission and once on ocfl version creation).
3. If we need to the ocfl client to support transactions down the road,  the impact to the fedora code base will be minimal:  let's not worry about it now.
4. Question of versioning in a transaction should be deferred until later.  Either option above could work.We might consider making transaction committal (optionally)