Pith Number

pith:JBWQXRUC

pith:2013:JBWQXRUCHKDONPT4KGSUWBJKD5

not attested not anchored not stored refs pending

Matrix Partitions of Split Graphs

Oren Shklarsky, Pavol Hell, Tom\'as Feder

arxiv:1306.1967 v2 · 2013-06-08 · cs.DM · 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{JBWQXRUCHKDONPT4KGSUWBJKD5}

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	2026-05-18T03:20:22.125533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

486d0bc6823a86e6be7c51a54b052a1f7264468f0055e3a73d14cd4d87bb8fcc

Aliases

arxiv: 1306.1967 · arxiv_version: 1306.1967v2 · doi: 10.48550/arxiv.1306.1967 · pith_short_12: JBWQXRUCHKDO · pith_short_16: JBWQXRUCHKDONPT4 · pith_short_8: JBWQXRUC

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/JBWQXRUCHKDONPT4KGSUWBJKD5 \
  | 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: 486d0bc6823a86e6be7c51a54b052a1f7264468f0055e3a73d14cd4d87bb8fcc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdb45b531a8e6a043b26a7ba5c3e8b42c27a61b9731d1a5044d6a194fcf565b7",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-06-08T23:29:47Z",
    "title_canon_sha256": "149bbcd900b71fbf3a48c8ee75fe6835fd348faf8dd6497b260eecb19023bdfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1967",
    "kind": "arxiv",
    "version": 2
  }
}