{
  "id": "nix",
  "acronym": "NIX",
  "name": "Neuroscience Information Exchange format",
  "category": "physiology",
  "kind": "data-standard",
  "description": "A generic data model and HDF5-based file format, started in the INCF Electrophysiology Task Force, that stores neuroscience data (time series, images, events, regions of interest) together with their metadata in one container. Metadata follow the odML model, and Neo reads and writes NIX files.",
  "formats": [
    "HDF5"
  ],
  "species": [
    "Multi-species"
  ],
  "maintainer": "German Neuroinformatics Node (G-Node)",
  "license": "BSD-3-Clause",
  "homepage": "https://nixio.readthedocs.io/",
  "repository": "https://github.com/G-Node/nix",
  "publications": [],
  "tools": [
    {
      "name": "nixpy",
      "url": "https://github.com/G-Node/nixpy",
      "note": "Python bindings (nixio on PyPI)"
    }
  ],
  "tags": [
    "electrophysiology",
    "HDF5",
    "metadata",
    "odML"
  ],
  "usedBy": [
    {
      "name": "Neo",
      "url": "https://github.com/NeuralEnsemble/python-neo/blob/master/neo/io/nixio.py",
      "note": "NixIO reads and writes NIX files"
    }
  ],
  "url": "https://neuroschema.org/o/nix/",
  "evaluation": {
    "links": {
      "homepage": {
        "url": "https://nixio.readthedocs.io/",
        "code": 200,
        "state": "ok",
        "resolvedUrl": "https://nixio.readthedocs.io/en/latest/",
        "lastModified": "2023-02-12T16:58:59.000Z",
        "checkedAt": "2026-10-27T21:18:27.205Z"
      },
      "repository": {
        "url": "https://github.com/G-Node/nix",
        "code": 200,
        "state": "ok",
        "checkedAt": "2026-10-27T21:18:27.482Z"
      },
      "download": null
    },
    "github": {
      "slug": "G-Node/nix",
      "stars": 73,
      "forks": 36,
      "openIssues": 67,
      "pushedAt": "2023-04-12T15:18:43Z",
      "archived": false,
      "license": null,
      "latestRelease": {
        "tag": "1.4.5",
        "date": "2021-04-20T11:49:52Z",
        "url": "https://github.com/G-Node/nix/releases/tag/1.4.5"
      },
      "source": "https://api.github.com/repos/G-Node/nix",
      "fetchedAt": "2026-10-27T21:18:27.758Z"
    },
    "ols": null,
    "obo": null,
    "bioportal": null,
    "citations": [],
    "git": {
      "commit": "44feb93aba4e899acc3d4b22b2c255a39c7d953a",
      "ref": "master",
      "headTag": null,
      "latestTag": {
        "name": "1.4.5",
        "commit": "6db3b36920dc0443ccdad9b07771ae02ce8b5788",
        "url": "https://github.com/G-Node/nix/releases/tag/1.4.5"
      },
      "tagCount": 18,
      "tagDates": [],
      "url": "https://github.com/G-Node/nix/tree/44feb93aba4e899acc3d4b22b2c255a39c7d953a",
      "source": "https://github.com/G-Node/nix.git/info/refs?service=git-upload-pack",
      "fetchedAt": "2026-10-27T21:18:27.161Z"
    },
    "tib": null,
    "dashboard": null,
    "quality": null,
    "oops": null,
    "releases": {
      "dates": [
        "2015-03-11",
        "2016-01-26",
        "2016-09-30",
        "2016-10-27",
        "2016-11-16",
        "2016-11-25",
        "2017-01-12",
        "2017-06-06",
        "2017-10-20",
        "2018-09-22",
        "2018-11-01",
        "2020-08-27",
        "2021-04-20"
      ],
      "lastYear": 0,
      "from": "GitHub releases"
    },
    "bioregistry": null,
    "artifact": null,
    "score": 11,
    "gross": 21,
    "earned": 17,
    "possible": 80,
    "qualityApplies": false,
    "penalty": {
      "score": -10,
      "reason": "3.5 years → 4 × max(0, 3.5 − 1)",
      "steps": [
        {
          "label": "Time since last activity",
          "pts": -10,
          "detail": "3.5 years → 4 × max(0, 3.5 − 1)"
        },
        {
          "label": "Inactive status",
          "pts": 0,
          "detail": "not archived, legacy or inactive"
        }
      ]
    },
    "consistent": null,
    "grade": "E",
    "fair": 13,
    "breakdown": {
      "findable": {
        "score": 0,
        "max": 12,
        "steps": [
          {
            "label": "Persistent identifier (F1)",
            "pts": 0,
            "max": 4,
            "detail": "no PURL / w3id / DOI for the artefact"
          },
          {
            "label": "Indexed in services (F4)",
            "pts": 0,
            "max": 5,
            "detail": "not indexed anywhere"
          },
          {
            "label": "Citable reference (F2)",
            "pts": 0,
            "max": 3,
            "detail": "no reference publication listed"
          }
        ],
        "notes": [
          "Persistent identifier (F1): no PURL / w3id / DOI for the artefact",
          "Indexed in services (F4): not indexed anywhere",
          "Citable reference (F2): no reference publication listed"
        ]
      },
      "accessible": {
        "score": 6,
        "max": 12,
        "steps": [
          {
            "label": "Homepage reachable",
            "pts": 3,
            "max": 3,
            "detail": "HTTP 200"
          },
          {
            "label": "Artefact retrievable over HTTP(S) (A1)",
            "pts": 3,
            "max": 6,
            "detail": "only the source repository is reachable (no direct download)"
          },
          {
            "label": "Metadata persists in a registry (A2)",
            "pts": 0,
            "max": 3,
            "detail": "not in any registry"
          }
        ],
        "notes": [
          "Artefact retrievable over HTTP(S) (A1): only the source repository is reachable (no direct download)",
          "Metadata persists in a registry (A2): not in any registry"
        ]
      },
      "interoperable": {
        "score": 0,
        "max": 12,
        "steps": [
          {
            "label": "Formal machine-readable format (I1)",
            "pts": 0,
            "max": 5,
            "detail": "none of: HDF5"
          },
          {
            "label": "Semantic-web IRIs (I2)",
            "pts": 0,
            "max": 3,
            "detail": "no RDF/OWL/JSON-LD representation"
          },
          {
            "label": "References other vocabularies (I3)",
            "pts": 0,
            "max": 4,
            "detail": "no imported vocabularies found (file not read yet)"
          }
        ],
        "notes": [
          "Formal machine-readable format (I1): none of: HDF5",
          "Semantic-web IRIs (I2): no RDF/OWL/JSON-LD representation",
          "References other vocabularies (I3): no imported vocabularies found (file not read yet)"
        ]
      },
      "reusable": {
        "score": 7,
        "max": 12,
        "steps": [
          {
            "label": "Clear license (R1.1)",
            "pts": 5,
            "max": 5,
            "detail": "BSD-3-Clause"
          },
          {
            "label": "Release provenance (R1.2)",
            "pts": 2,
            "max": 4,
            "detail": "1.4.5 (latest GitHub release); not declared inside the artefact"
          },
          {
            "label": "Community standards (R1.3)",
            "pts": 0,
            "max": 3,
            "detail": "no compliance report (not on the OBO Dashboard) and not listed in FAIRsharing"
          }
        ],
        "notes": [
          "Release provenance (R1.2): 1.4.5 (latest GitHub release); not declared inside the artefact",
          "Community standards (R1.3): no compliance report (not on the OBO Dashboard) and not listed in FAIRsharing"
        ]
      },
      "quality": {
        "score": 0,
        "max": 20,
        "steps": [
          {
            "label": "Not applicable",
            "pts": 0,
            "max": 0,
            "detail": "data-standard without an OWL/OBO/RDF artefact; total scaled from 80 to 100"
          }
        ],
        "notes": [],
        "applicable": false
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      "maintenance": {
        "score": 0,
        "max": 16,
        "steps": [
          {
            "label": "Recency",
            "pts": 0,
            "max": 10,
            "detail": "2023-04-12 → 42.5 months (older / unknown)"
          },
          {
            "label": "Release cadence (12 months)",
            "pts": 0,
            "max": 6,
            "detail": "0 releases (GitHub releases)"
          }
        ],
        "notes": [
          "Recency: 2023-04-12 → 42.5 months (older / unknown)",
          "Release cadence (12 months): 0 releases (GitHub releases)"
        ]
      },
      "adoption": {
        "score": 4,
        "max": 16,
        "steps": [
          {
            "label": "Documented adopting projects",
            "pts": 2,
            "max": 7,
            "detail": "1 project"
          },
          {
            "label": "Reused by other ontologies",
            "pts": 0,
            "max": 4,
            "detail": "0"
          },
          {
            "label": "Community signal",
            "pts": 2,
            "max": 5,
            "detail": "max(stars 73 → 2, citations 0 → 0)"
          }
        ],
        "notes": [
          "Documented adopting projects: 1 project",
          "Reused by other ontologies: 0",
          "Community signal: max(stars 73 → 2, citations 0 → 0)"
        ]
      }
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    "reuseCount": 0,
    "importCount": 0,
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        "interoperable": 0,
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        "robotWarnings": null,
        "criticalPitfalls": null,
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