Pith Number

pith:27XRVP33

pith:2015:27XRVP332NEMMBRXHITZYQI7WA

not attested not anchored not stored refs pending

Boxicity and topological invariants

Louis Esperet

arxiv:1503.05765 v2 · 2015-03-19 · 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{27XRVP332NEMMBRXHITZYQI7WA}

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	2026-05-18T01:34:34.950179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7ef1abf7bd348c606373a279c411fb007c0d36070f2e63de51ffafd060ebb4f

Aliases

arxiv: 1503.05765 · arxiv_version: 1503.05765v2 · doi: 10.48550/arxiv.1503.05765 · pith_short_12: 27XRVP332NEM · pith_short_16: 27XRVP332NEMMBRX · pith_short_8: 27XRVP33

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/27XRVP332NEMMBRXHITZYQI7WA \
  | 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: d7ef1abf7bd348c606373a279c411fb007c0d36070f2e63de51ffafd060ebb4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5bea9684f178ed04e837e6aa01bcf079bb8b89875c2c4ef5eba1c50efe6319a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-03-19T13:50:31Z",
    "title_canon_sha256": "683e4b87db8d0120329f11b6a0566f2878f61e9c35619a2187d992e392eb1a46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05765",
    "kind": "arxiv",
    "version": 2
  }
}