Pith Number

pith:44K47XQE

pith:2026:44K47XQERCSVPCDMX7OSMSLCKA

not attested not anchored not stored refs pending

A Multi-Dimensional, Per-Pass Empirical Study of the LLVM Optimization Pipeline

Federico Bruzzone, Walter Cazzola

arxiv:2606.31238 v1 · 2026-06-30 · cs.SE · cs.PF · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44K47XQERCSVPCDMX7OSMSLCKA}

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	2026-07-01T01:17:56.674368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e715cfde0488a557886cbfdd26496250328eb1296c93df76327662c523aeed2e

Aliases

arxiv: 2606.31238 · arxiv_version: 2606.31238v1 · doi: 10.48550/arxiv.2606.31238 · pith_short_12: 44K47XQERCSV · pith_short_16: 44K47XQERCSVPCDM · pith_short_8: 44K47XQE

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/44K47XQERCSVPCDMX7OSMSLCKA \
  | 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: e715cfde0488a557886cbfdd26496250328eb1296c93df76327662c523aeed2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bfc147d9d1578ef9fe6804262f9af4a9b6f4ec4aa9fada1c791e926e3297c84",
    "cross_cats_sorted": [
      "cs.PF",
      "cs.PL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-06-30T07:10:48Z",
    "title_canon_sha256": "b6b597445fe0678fa91f36c025127267bf31bf8170bdeabfb133ba838a4a727c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31238",
    "kind": "arxiv",
    "version": 1
  }
}