I think the first biggie is non decaying storage. Outside of some paper, everything seems to decay fast, and even if stored correctly. Film goes bad in climate controlled vaults at times.
Those DVDs made of rock supposedly last a long time, but it would be nice to have something that lasts 1000s of years.
If you're talking about analog archival that is a whole other ball of yarn, but in terms of digital then I would think that the thing to do is use only lossless compression, bit-level fidelity error correction, and multiply-redundant, multi-region storage. You must plan on storage media, providers, and entire networks partitioning, disappearing, and failing.
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I think the first biggie is non decaying storage. Outside of some paper, everything seems to decay fast, and even if stored correctly. Film goes bad in climate controlled vaults at times.
Those DVDs made of rock supposedly last a long time, but it would be nice to have something that lasts 1000s of years.
If you're talking about analog archival that is a whole other ball of yarn, but in terms of digital then I would think that the thing to do is use only lossless compression, bit-level fidelity error correction, and multiply-redundant, multi-region storage. You must plan on storage media, providers, and entire networks partitioning, disappearing, and failing.