Explanation
Understanding-oriented. Why the platform works the way it does.
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For contributors
Access tiers, and why search is open
Three tiers, unchanged from the previous system, plus the one thing that deliberately needs no account at all.
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For researchers
How force-field data is organised
Fragments, reference systems, fits and parameters — why a parameter is only meaningful with its fit.
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For researchers
Identifiers and citation
Why every record gets a permanent URI but not its own DOI.
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For newcomers
Nets, tilings and why topology matters
Why a database of abstract graphs is the useful thing to have when you are designing a real material.
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For contributors
The data model
What the tables are, how they differ from the legacy schema, and what has not been migrated yet.
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For researchers
The reverse topological approach
Designing a framework by starting from the net you want, rather than from the chemistry you have.
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For contributors
The two orderings a net carries
rcsr_index is where a net is shown; complexity_rank is when it was ingested. They are different columns and conflating them is the known failure mode.