The Chronopolis system has employs two sets of software which suites that interact with each other in order to provide bit-level preservation. The first set, ChronCore, is a set of services which distribute data throughout the Chronopolis network. These services are named Intake, Ingest, and Replication. The second software suite employed by the Chronopolis network is the Audit Control Environment (ACE) which continually audits data in Chronopolis to ensure the integrity of both the checksums and files. ACE consists of both an Audit Manager (ACE-AM) which runs locally at each network node and an Integrity Management Service (ACE-IMS) which is a web service currently hosted by UMIACSTexas Digital Library (TDL).
In addition to the software used for distributing data through the network, there are additional services for tertiary tasks:
- Repair - automates the workflow for correcting file errors within the Chronopolis Network
- Restore - automates the workflow for returning data back to a Depositor
ChronCore Services
Packaging
Data in Chronopolis is packaged using the BagIt specification.
Glossary
Depositor
An institution, person, or conglomerate which is a part of Chronopolis and has data to be stored for bit-level preservation
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