Pith Number

pith:WMDNK3SS

pith:2026:WMDNK3SSJDUMFITLMQF6NOA4LN

not attested not anchored not stored refs pending

Step-Level Sparse Autoencoder for Reasoning Process Interpretation

Hao Xu, Jiayu Liu, Ning Miao, Xuan Yang, Yuhang Lai, Zhenya Huang

arxiv:2603.03031 v2 · 2026-03-03 · 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{WMDNK3SSJDUMFITLMQF6NOA4LN}

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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

Steered Generation via Gradient-Based Optimization on Sparse Query Features

Receipt and verification

First computed	2026-06-02T02:04:51.974155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b306d56e5248e8c2a26b640be6b81c5b4a6b5258b4b08b1808ae62cdc370b8be

Aliases

arxiv: 2603.03031 · arxiv_version: 2603.03031v2 · doi: 10.48550/arxiv.2603.03031 · pith_short_12: WMDNK3SSJDUM · pith_short_16: WMDNK3SSJDUMFITL · pith_short_8: WMDNK3SS

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/WMDNK3SSJDUMFITLMQF6NOA4LN \
  | 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: b306d56e5248e8c2a26b640be6b81c5b4a6b5258b4b08b1808ae62cdc370b8be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "155c397cfdff5a0d6254fdf6b6bc06af2fa62506dabd5ee5e0b40c81b4581978",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-03T14:25:02Z",
    "title_canon_sha256": "8b1dbcf7cdf3353b7e553ceff0544b827d23106d0bd96949c1a8930d5cfcdd1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.03031",
    "kind": "arxiv",
    "version": 2
  }
}