Pith Number

pith:X4C5I4NL

pith:2018:X4C5I4NLXLYYISAD4NH4VZWGT3

not attested not anchored not stored refs pending

On essentially 4-edge-connected cubic bricks

Charles H. C. Little, Cl\'audio L. Lucchesi, Marcelo H. de Carvalho, Nishad Kothari

arxiv:1803.08713 v3 · 2018-03-23 · 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{X4C5I4NLXLYYISAD4NH4VZWGT3}

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	2026-05-22T01:03:13.100202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf05d471abbaf1844803e34fcae6c69ed01adcd0983d6d9340d2145f980d7e9e

Aliases

arxiv: 1803.08713 · arxiv_version: 1803.08713v3 · doi: 10.48550/arxiv.1803.08713 · pith_short_12: X4C5I4NLXLYY · pith_short_16: X4C5I4NLXLYYISAD · pith_short_8: X4C5I4NL

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/X4C5I4NLXLYYISAD4NH4VZWGT3 \
  | 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: bf05d471abbaf1844803e34fcae6c69ed01adcd0983d6d9340d2145f980d7e9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70f3baed1da6216a185678d2b7a1b97fe7749f7944f18b91c8225f8b9dda1bd0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-23T10:08:12Z",
    "title_canon_sha256": "70d49266e97821777d67dcfd14cb2db7bdd0482569d1ef70e874f9aa564a4148"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08713",
    "kind": "arxiv",
    "version": 3
  }
}