Pith Number

pith:SDAZ4NMV

pith:2014:SDAZ4NMVMMELGEGC7JBSQRII5V

not attested not anchored not stored refs pending

A relative of Hadwiger's conjecture

Dong Yeap Kang, Jaehoon Kim, Katherine Edwards, Paul Seymour, Sang-il Oum

arxiv:1407.5236 v3 · 2014-07-20 · 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{SDAZ4NMVMMELGEGC7JBSQRII5V}

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	2026-05-18T01:23:50.926869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90c19e35956308b310c2fa43284508ed4aceff220b03cc94a4f3cc29df420aab

Aliases

arxiv: 1407.5236 · arxiv_version: 1407.5236v3 · doi: 10.48550/arxiv.1407.5236 · pith_short_12: SDAZ4NMVMMEL · pith_short_16: SDAZ4NMVMMELGEGC · pith_short_8: SDAZ4NMV

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/SDAZ4NMVMMELGEGC7JBSQRII5V \
  | 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: 90c19e35956308b310c2fa43284508ed4aceff220b03cc94a4f3cc29df420aab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3f4cd01cf810659a89f05f238377af392f56cfdc0e671e843a03ac874354c97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-07-20T02:36:59Z",
    "title_canon_sha256": "0718d5d3a3b8d8c1b0e7c0383546a5b4c0f8fd3e4496e7260fc97af861532254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5236",
    "kind": "arxiv",
    "version": 3
  }
}