Pith Number

pith:S7DALXEM

pith:2026:S7DALXEM2MX6LFT75QDPXX6XVL

not attested not anchored not stored refs pending

Can Coding Agents Implement Missed Compiler Optimizations? Evaluating LLM Agents on LLVM Peephole Optimizations

Chengnian Sun, Chunhao Liao, Hongxu Xu, Xintong Zhou

arxiv:2607.02684 v1 · 2026-07-02 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S7DALXEM2MX6LFT75QDPXX6XVL}

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	2026-07-07T00:16:08.125812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97c605dc8cd32fe5967fec06fbdfd7aaeaf6b4ab886efb7b65936d05f081ded7

Aliases

arxiv: 2607.02684 · arxiv_version: 2607.02684v1 · doi: 10.48550/arxiv.2607.02684 · pith_short_12: S7DALXEM2MX6 · pith_short_16: S7DALXEM2MX6LFT7 · pith_short_8: S7DALXEM

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/S7DALXEM2MX6LFT75QDPXX6XVL \
  | 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: 97c605dc8cd32fe5967fec06fbdfd7aaeaf6b4ab886efb7b65936d05f081ded7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "466d68848ede24461518f2784221de346713e32037d5f55bacb5a9a60d35e2ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-07-02T18:25:29Z",
    "title_canon_sha256": "75afe97c63cafc151820cb632451c53a94e70ca4c08793f30e9ca313d9b48822"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02684",
    "kind": "arxiv",
    "version": 1
  }
}