Pith Number

pith:2RHNX5NZ

pith:2026:2RHNX5NZFBUGNDGKY7QFJVVK6X

not attested not anchored not stored refs pending

Are Single-Token Sparse Autoencoder Features Causally Necessary? Layer-Depth and SAE-Family Effects

Adriano Koshiyama, Ilham Wicaksono, Kleyton da Costa, Rishi Kalra, Seonglae Cho, Zekun Wu

arxiv:2607.20596 v1 · 2026-07-22 · cs.LG · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2RHNX5NZFBUGNDGKY7QFJVVK6X}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Where You Measure Decides What You Measure: Position Selection in Ablation-Based SAE Evaluation

Receipt and verification

First computed	2026-07-24T00:23:24.537171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d44edbf5b92868668ccac7e054d6aaf5e4acc6c11a2d5272569a63cecb989ceb

Aliases

arxiv: 2607.20596 · arxiv_version: 2607.20596v1 · doi: 10.48550/arxiv.2607.20596 · pith_short_12: 2RHNX5NZFBUG · pith_short_16: 2RHNX5NZFBUGNDGK · pith_short_8: 2RHNX5NZ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2RHNX5NZFBUGNDGKY7QFJVVK6X \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d44edbf5b92868668ccac7e054d6aaf5e4acc6c11a2d5272569a63cecb989ceb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec7025d96d255f58d0dc136b9eb896ae2f4afb92e871a29d6d9921cff51cdb17",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-22T17:33:16Z",
    "title_canon_sha256": "0fc8d29891b58de889ee6ecae8113f5520d955e9ca78011656810fc5629e804a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20596",
    "kind": "arxiv",
    "version": 1
  }
}