Pith Number

pith:MSJ7FJ2C

pith:2026:MSJ7FJ2C3TIY4COPZ6C7VPQLNM

not attested not anchored not stored refs pending

Evaluating LLMs on Real-World Software Performance Optimization

Chunyang Chen, Ezgi Sar{\i}kayak, Hesham Ghonim, Wenchao Gu

arxiv:2606.25530 v1 · 2026-06-24 · cs.SE · 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{MSJ7FJ2C3TIY4COPZ6C7VPQLNM}

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	2026-06-25T01:18:08.016546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6493f2a742dcd18e09cfcf85fabe0b6b16e5d8c81fa5e1134a7e134f68584932

Aliases

arxiv: 2606.25530 · arxiv_version: 2606.25530v1 · doi: 10.48550/arxiv.2606.25530 · pith_short_12: MSJ7FJ2C3TIY · pith_short_16: MSJ7FJ2C3TIY4COP · pith_short_8: MSJ7FJ2C

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/MSJ7FJ2C3TIY4COPZ6C7VPQLNM \
  | 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: 6493f2a742dcd18e09cfcf85fabe0b6b16e5d8c81fa5e1134a7e134f68584932

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5385e2222426867ea9167413469b7d85bc71a8552e01911c36e6c7dfe00839d0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-24T08:07:41Z",
    "title_canon_sha256": "922602f997c9919eb44abd50756d5c1596f4e7f89e990b8f8f6fd6a7681a053b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25530",
    "kind": "arxiv",
    "version": 1
  }
}