Pith Number

pith:7ANK5EOE

pith:2026:7ANK5EOEEQGIOOLGQHHUGVGX23

not attested not anchored not stored refs pending

SWE-NFI: Studying and Benchmarking Coding Agents for Non-Functional Improvements

Boyuan Chen, Haonan Zhang, He Yang Yuan, Junkai Chen, Pengyu Xue, Weiyi Shang, Xin Wang, Zhenhao Li, Zishuo Ding

arxiv:2607.27409 v1 · 2026-07-29 · cs.SE · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ANK5EOEEQGIOOLGQHHUGVGX23}

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	2026-07-31T00:11:44.140129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

f81aae91c4240c87396681cf4354d7d6ef0e0bb56ad9cbedd581638d8c07430f

Aliases

arxiv: 2607.27409 · arxiv_version: 2607.27409v1 · doi: 10.48550/arxiv.2607.27409 · pith_short_12: 7ANK5EOEEQGI · pith_short_16: 7ANK5EOEEQGIOOLG · pith_short_8: 7ANK5EOE

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/7ANK5EOEEQGIOOLGQHHUGVGX23 \
  | 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: f81aae91c4240c87396681cf4354d7d6ef0e0bb56ad9cbedd581638d8c07430f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69ee5ac363ad6961940441b3af952ea7e4e0a854b127e84c44cf6f2bfafc2dab",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-07-29T19:28:32Z",
    "title_canon_sha256": "c4258ca4a2639142f0f95cf64a8b671aba2f38f1a31beda51ef0d60702935931"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27409",
    "kind": "arxiv",
    "version": 1
  }
}