Pith Number

pith:5FJ4UVZJ

pith:2016:5FJ4UVZJA5ISUYXUMU5BCV346C

not attested not anchored not stored refs pending

On Box-Perfect Graphs

Guoli Ding, Qiulan Zhao, Wenan Zang

arxiv:1608.04572 v2 · 2016-08-16 · 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{5FJ4UVZJA5ISUYXUMU5BCV346C}

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	2026-05-18T01:08:33.740412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e953ca572907512a62f4653a11577cf0adc5e04d1fd76d0e1534f41b0fa2ac54

Aliases

arxiv: 1608.04572 · arxiv_version: 1608.04572v2 · doi: 10.48550/arxiv.1608.04572 · pith_short_12: 5FJ4UVZJA5IS · pith_short_16: 5FJ4UVZJA5ISUYXU · pith_short_8: 5FJ4UVZJ

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/5FJ4UVZJA5ISUYXUMU5BCV346C \
  | 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: e953ca572907512a62f4653a11577cf0adc5e04d1fd76d0e1534f41b0fa2ac54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7f6c2a301decaa0fe0a2295d9131c6b1f235e2c23a29641a9db045818ebcb98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-08-16T12:37:55Z",
    "title_canon_sha256": "b6083bf0a796f5e0b1cbe26e0383e522f2393b754ce6ca56028fcc9e2a4ef5f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04572",
    "kind": "arxiv",
    "version": 2
  }
}