Pith Number

pith:P6JDUGB5

pith:2021:P6JDUGB5MWB7POR5GLONVJB3CU

not attested not anchored not stored refs pending

Automated Code Optimization with E-Graphs

Alessandro Cheli

arxiv:2112.14714 v2 · 2021-12-26 · cs.PL · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6JDUGB5MWB7POR5GLONVJB3CU}

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	2026-07-05T03:54:14.984142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f923a183d6583f7ba3d32dcdaa43b152ba82a3f139f3f981a4dce2a33761343

Aliases

arxiv: 2112.14714 · arxiv_version: 2112.14714v2 · doi: 10.48550/arxiv.2112.14714 · pith_short_12: P6JDUGB5MWB7 · pith_short_16: P6JDUGB5MWB7POR5 · pith_short_8: P6JDUGB5

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/P6JDUGB5MWB7POR5GLONVJB3CU \
  | 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: 7f923a183d6583f7ba3d32dcdaa43b152ba82a3f139f3f981a4dce2a33761343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeb7024c762e714e323807282709a2f19f184b1d2bd966082f4148a9aa3983b4",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2021-12-26T12:49:18Z",
    "title_canon_sha256": "39c8c0959e988cb9c6bcb82376ca90dd9990dce91e59de84a8c87a294ebe2a43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14714",
    "kind": "arxiv",
    "version": 2
  }
}