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task_categories:
- other
pretty_name: OFoldX Chemical Component Dictionary
---
# OFoldX Chemical Component Dictionary
Content version: `wwpdb-ccd-snapshot-20261024T045615Z-sha256-d5be0434a719108e2dd50708b17b0af26b088c1ce7d751a668aeecf9bdc26949`. Format: `ofoldx.ccd/7`.
Derived from the wwPDB Chemical Component Dictionary; upstream data usage terms and citation: https://www.wwpdb.org/data/ccd .
Source: predownloaded local CCD snapshot (`components.cif.gz`) from https://files.wwpdb.org/pub/pdb/data/monomers/components.cif.gz.
Upstream Last-Modified: `2026-10-24T04:56:15Z`; ETag: `"6732934184e72d31bd31667c59d79fe0-15"`. The local input SHA256 was independently verified against the complete upstream stream.
Source SHA256: `d5be0434a719108e2dd50708b17b0af26b088c1ce7d751a668aeecf9bdc26949`.
Artifact SHA256: `12f6ad94f268d06ed9c7d7c3e445f1ce4541cb7238f131e5b5f883bc9731d523`.
Builder: `ofoldx.reference.ccd.build@uninstalled:sha256:c7ede185c73e4d3a7c882956dbd9d14affd820905abca0c167927da94098eef3`. Components: 51537. Builder source commit: `b3ce70c46f9cdd0bc962b827fc9e2a2ada2b2fed`.
`components.safetensors` contains the canonical component definitions. `components.safetensors.provenance.json` records source identity and build findings. Definitions preserve unknown and contradicted facts; a successful build does not make all chemistry fully determined.
OFoldX uses the cached `oteam/ccd` dataset by default. Download a chosen revision with `python -m ofoldx.reference.ccd download --repo-id oteam/ccd --revision COMMIT`, then set `OFOLDX_CCD_ARTIFACT` to the printed path.
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