Pith Number

pith:QAHN2UHI

pith:2014:QAHN2UHIV2TKFQO6DTHNEOJACT

not attested not anchored not stored refs pending

Distributive Lattice Polymorphism on Reflexive Graphs

Mark Siggers

arxiv:1411.7879 v2 · 2014-11-28 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAHN2UHIV2TKFQO6DTHNEOJACT}

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	2026-05-18T00:25:02.490989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

800edd50e8aea6a2c1de1cced2392014f0617a5cd9be0a04395141f6c487bb70

Aliases

arxiv: 1411.7879 · arxiv_version: 1411.7879v2 · doi: 10.48550/arxiv.1411.7879 · pith_short_12: QAHN2UHIV2TK · pith_short_16: QAHN2UHIV2TKFQO6 · pith_short_8: QAHN2UHI

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/QAHN2UHIV2TKFQO6DTHNEOJACT \
  | 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: 800edd50e8aea6a2c1de1cced2392014f0617a5cd9be0a04395141f6c487bb70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "242886ed267758b4a516ccc9f8804fd37698661a742c67a2d90fe76cd92eeb93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-11-28T14:32:01Z",
    "title_canon_sha256": "bbbd22847c10bf64eb5de75ecead80ea8c954720bb99013a7b909421b784a29e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7879",
    "kind": "arxiv",
    "version": 2
  }
}