Atharvaveda

AVS 20.20.6

Supported

índraś ca mr̥láyāti no ná naḥ paścā́d agháṃ naśat | bhadráṃ bhavāti naḥ puráḥ ||6||

Translation

Indra be gracious unto us: sin shall not reach us afterward . And good shall be before us still,

ShelfmarkVG:AV:SAU:K20:S020:V006cited as AVS 20.20.6

The traditional hymn heading, not a statement inside the verse.

Not yet modelled

The connection layer could not be read just now. The verse and its apparatus are unaffected.

How attribution was recorded1

Three rows, not four, and the shape of the answer is the point: the Samaveda carries no seer at all, while the Yajurveda's 1,960 passages are 1,960 source-stated and 0 inherited and the Atharvaveda's 5,084 are the exact reverse. So 'how many mantras have a named seer' has three different meanings in three corpora, and a single corpus-wide figure averages a per-verse attribution against a hymn label. Prefer `source_stated` for any defensible claim about a named seer.
rishi_layer_reach_by_veda