Pith Number

pith:CRXVDAUC

pith:2026:CRXVDAUCS5WRTEBA6LK6DKUUHH

not attested not anchored not stored refs pending

Good SFT Optimizes for SFT, Better SFT Prepares for Reinforcement Learning

Dylan Zhang, Haojin Wang, Hao Peng, Qingzhi Chen, Yufeng Xu

arxiv:2602.01058 v2 · 2026-02-01 · 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{CRXVDAUCS5WRTEBA6LK6DKUUHH}

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.

Cited by

1 paper in Pith

Why Code, Why Now: An Information-Theoretic Perspective on the Limits of Machine Learning

Receipt and verification

First computed	2026-05-29T01:05:03.089153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

146f518282976d199020f2d5e1aa9439ed848d31a88ef701a12920ac0875e5c5

Aliases

arxiv: 2602.01058 · arxiv_version: 2602.01058v2 · doi: 10.48550/arxiv.2602.01058 · pith_short_12: CRXVDAUCS5WR · pith_short_16: CRXVDAUCS5WRTEBA · pith_short_8: CRXVDAUC

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/CRXVDAUCS5WRTEBA6LK6DKUUHH \
  | 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: 146f518282976d199020f2d5e1aa9439ed848d31a88ef701a12920ac0875e5c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69ec8a600551900182b9112d7e90428cbbe87afe453d25e6b493a7349e229de6",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-02-01T06:53:45Z",
    "title_canon_sha256": "95b1798664bb53f843d3b7325588847518f5e782a49c5da424cb015d7863f8d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.01058",
    "kind": "arxiv",
    "version": 2
  }
}