Section · evidence
The evidence layer, as an API.
3,099 claims across 5 entity types, each carrying the source URL it was read from, when it was fetched, its licence class and a verdict. This is the same spine that renders every page on this site.
- 815 trial claims · browse
- 1,232 approval claims · browse
- 28 regulatory claims · browse
- 1,024 compound claims · browse
- 0 catalyst claims · browse
Endpoints
| Method | Path | Returns |
|---|---|---|
| GET | /api/spine | Counts per entity type and the contract version. |
| GET | /api/spine/claims?type=trial&limit=50&offset=0 | Paginated claims with the five provenance fields. |
| GET | /api/spine/entity/trial/<slug> | One claim by its stable slug, or 404. |
Sample claim
{
"entity": {
"type": "trial",
"id": "NCT07605806",
"slug": "nct07605806",
"title": "Vancomycin (IV)"
},
"source_url": "https://clinicaltrials.gov/study/NCT07605806",
"source_name": "ClinicalTrials.gov",
"fetched_at": "2026-10-28T02:30:11.776Z",
"licence_class": "attribution-required",
"verdict": "primary-source"
}Licence classes
- public-domain — US Federal Register, openFDA, regulator notices.
- attribution-required — ClinicalTrials.gov and publisher URLs; cite the source.
- internal-only — derived rows such as compound aggregates; not for redistribution.
Verdicts
- primary-source — read from the registry that published it.
- derived — computed from primary rows (never a substitute for them).
- unverified — no primary row; shown only where the UI says so.