evidence boundary
unknowncomputational
An evidence atom is an inspectable support unit. It is not a finding by itself; it supports or challenges a finding through review.
frontiers / frontier
Evidence atom
back to sourcesevidence boundary
unknownAn evidence atom is an inspectable support unit. It is not a finding by itself; it supports or challenges a finding through review.
finding binding
boundThe set of 18 induction heads in pythia-160m (top heads L4H6, L8H2, L4H10, L4H8, L5H0) is causally necessary for in-context repetition: group mean-ablation raises repeat-prediction loss by Delta=11.520 nats (per-seed deltas 8.81, 8.55, 13.17, 10.99, 16.08, all positive), versus ~0 for a control head set.
inspect finding →
source binding
source-boundvs_2a6614cf8c092119
inspect source →
review context
unverified1 reviewable changes and 0 evaluation records target this atom or its bound objects.
Evidence statement
The set of 18 induction heads in pythia-160m (top heads L4H6, L8H2, L4H10, L4H8, L5H0) is causally necessary for in-context repetition: group mean-ablation raises repeat-prediction loss by Delta=11.520 nats (per-seed deltas 8.81, 8.55, 13.17, 10.99, 16.08, all positive), versus ~0 for a control head set.
extraction method
manual_curation
support relation
unknown
condition refs
vcnd_8989f69e63537641
Caveats
events
vev_30c1fa3ecc8020e4finding.assertedManual finding added to frontier state
agent:replicator · 2026-05-29
reviewable changes
vpr_ba42905897b2b7f5finding.addManual finding added to frontier state
applied · agent:replicator · 2026-05-29
evaluations
No evaluation rows are attached.