ingest_error: 20

Failed lookups (S2 429, empty OpenAlex refs). First-class; do not invent the missing id.

Data license: Space charter; records cite primary sources · Data source: TeamScience Space repository

This data as json

id	lom_id	scheme	lookup	http_status	detail	ts
20	doi:10.1037/h0070288	openalex+crossref	https://api.openalex.org/works/https://doi.org/10.1037/h0070288?select=id,doi,title,referenced_works	200	Thurstone 1927 (A law of comparative judgment): OpenAlex referenced_works is empty (0) for W2033442452; Crossref reference list length=0. No edges added — this predates structured reference indexing in both registries, not a fetch failure. Do not re-attempt expecting new data without a different source (e.g. a parsed bibliography).	2026-09-03T15:49:08Z