Retrieving "Trusted Digital Repositories" from the archives

Cross-reference notes under review

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1. Digital Preservation

   Linked via "Trusted Digital Repositories (TDRs)"

   Technical Infrastructure and Fixity
   Reliable digital preservation relies heavily on robust technical infrastructure, often involving complex architectures known as Trusted Digital Repositories (TDRs).
   A critical maintenance task is ensuring fixity, which verifies that a digital object has not been altered, accidentally or maliciously. This is typically achieved by calculating a cryptographic hash (e.g., SHA-256) of the file content at the point of ingest. This "digital fingerprint" is stored separately.…