Pith Number

pith:R53FGZ3T

pith:2020:R53FGZ3T5Y7SC5AVI6D4565Q2V

not attested not anchored not stored refs pending

egg: Fast and Extensible Equality Saturation

Chandrakana Nandi, Max Willsey, Oliver Flatt, Pavel Panchekha, Yisu Remy Wang, Zachary Tatlock

arxiv:2004.03082 v3 · 2020-04-07 · 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{R53FGZ3T5Y7SC5AVI6D4565Q2V}

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	2026-07-05T02:05:06.452791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f76536773ee3f2174154787cefbb0d54bc1ead5736a4892757f12b20f08b22b

Aliases

arxiv: 2004.03082 · arxiv_version: 2004.03082v3 · doi: 10.48550/arxiv.2004.03082 · pith_short_12: R53FGZ3T5Y7S · pith_short_16: R53FGZ3T5Y7SC5AV · pith_short_8: R53FGZ3T

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/R53FGZ3T5Y7SC5AVI6D4565Q2V \
  | 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: 8f76536773ee3f2174154787cefbb0d54bc1ead5736a4892757f12b20f08b22b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da83b81f6ed899e4b37aeaa8117e1f173aea68f3a0e0fe61137283f544e0bbf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2020-04-07T02:26:12Z",
    "title_canon_sha256": "6b9f6e3ac511796cea0571d7483c704c63cf2bd065f4f087426a222fb3489462"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.03082",
    "kind": "arxiv",
    "version": 3
  }
}