Pith Number

pith:EBVB2T2Z

pith:2026:EBVB2T2ZMNB6KEPQ2PP6VMDIFI

not attested not anchored not stored refs pending

E-Graphs as a Persistent Compiler Abstraction

Alexandre Lopoukhine, Bjorn De Sutter, Jianyi Cheng, Jules Merckx, Samuel Coward, Tobias Grosser

arxiv:2602.16707 v2 · 2026-02-18 · 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{EBVB2T2ZMNB6KEPQ2PP6VMDIFI}

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

2 papers in Pith

Reading AI Model Compilation in MLIR Through the Lens of Formal Theories

LLM-Guided Strategy Synthesis for Scalable Equality Saturation

Receipt and verification

First computed	2026-08-04T02:09:22.189125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

206a1d4f596343e511f0d3dfeab0682a346e200bd94610ed63195f8f862c6051

Aliases

arxiv: 2602.16707 · arxiv_version: 2602.16707v2 · doi: 10.48550/arxiv.2602.16707 · pith_short_12: EBVB2T2ZMNB6 · pith_short_16: EBVB2T2ZMNB6KEPQ · pith_short_8: EBVB2T2Z

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/EBVB2T2ZMNB6KEPQ2PP6VMDIFI \
  | 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: 206a1d4f596343e511f0d3dfeab0682a346e200bd94610ed63195f8f862c6051

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2b6cc03f48b70391d0c103d08cff5e87e934799429d77be7635c7e1ad297af5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2026-02-18T18:56:52Z",
    "title_canon_sha256": "5e81d454e8b50e94897e9f5fa850c0741388f1f97d20fa2b86277f92d5569ba0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.16707",
    "kind": "arxiv",
    "version": 2
  }
}