Pith Number

pith:VEGH6MNY

pith:2026:VEGH6MNY3GL3LTIQGU7MDD5LPI

not attested not anchored not stored refs pending

Do Sparse Autoencoders Identify Reasoning Features in Language Models?

George Ma, Irene Y. Chen, Somayeh Sojoudi, Zhongyuan Liang

arxiv:2601.05679 v7 · 2026-01-09 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEGH6MNY3GL3LTIQGU7MDD5LPI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-05-20T00:03:01.821187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a90c7f31b8d997b5cd10353ec18fab7a3d17a0129a1f1946edb591c0e6e641d1

Aliases

arxiv: 2601.05679 · arxiv_version: 2601.05679v7 · doi: 10.48550/arxiv.2601.05679 · pith_short_12: VEGH6MNY3GL3 · pith_short_16: VEGH6MNY3GL3LTIQ · pith_short_8: VEGH6MNY

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/VEGH6MNY3GL3LTIQGU7MDD5LPI \
  | 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: a90c7f31b8d997b5cd10353ec18fab7a3d17a0129a1f1946edb591c0e6e641d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b87fd1982d28e55d20b951bca480b72416c2a0aa8d7f9f90209635e7f11a927",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-01-09T09:54:36Z",
    "title_canon_sha256": "209e5c216704f14d76bcedb11c317988df7f3d29d29a535ef40f41daa6d8a372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.05679",
    "kind": "arxiv",
    "version": 7
  }
}