entity_sources: ENT_ACHERON_RIVER, SRC_THEOI_POTAMOI, index attestation

2,936 links between entities and the sources that attest them, with evidence type and passage-level notes. The primary evidence layer: every entity classification traces to at least one record here.

This data as json

entity_id	source_id	evidence_type	source_note
ENT_ACHERON_RIVER	SRC_THEOI_POTAMOI	index attestation	Literary attestation in classical/mythographic tradition; cult evidence varies by entity.