Pith Number

pith:37G2J3II

pith:2026:37G2J3II3D2P2EPFJ2GB33D2VA

not attested not anchored not stored refs pending

Guiding LLM Post-training Data Engineering with Model Internals from Sparse Autoencoders

Jinwu Hu, Juanzi Li, Lei Hou, Xiaozhi Wang, Yi Jing, Zao Dai, Zijun Yao

arxiv:2605.27354 v1 · 2026-05-26 · cs.LG · cs.AI · 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{37G2J3II3D2P2EPFJ2GB33D2VA}

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	2026-05-27T02:06:19.458167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfcda4ed08d8f4fd11e54e8c1dec7aa838b1c38911859c62d34234b58cda1740

Aliases

arxiv: 2605.27354 · arxiv_version: 2605.27354v1 · doi: 10.48550/arxiv.2605.27354 · pith_short_12: 37G2J3II3D2P · pith_short_16: 37G2J3II3D2P2EPF · pith_short_8: 37G2J3II

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/37G2J3II3D2P2EPFJ2GB33D2VA \
  | 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: dfcda4ed08d8f4fd11e54e8c1dec7aa838b1c38911859c62d34234b58cda1740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0062ddcc8ff7469a8a8a21afd1b3dfeac32da237d98bccd88c0db0893db6a16",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-26T17:55:59Z",
    "title_canon_sha256": "947a3b576177f2dff21551a7b800a0cb3a62d015c8f580d43a9ba91882d77ef2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27354",
    "kind": "arxiv",
    "version": 1
  }
}