Pith Number

pith:OTHN67XU

pith:2014:OTHN67XUIW35TJEV6YKEYSKMEK

not attested not anchored not stored refs pending

Characterizing Block Graphs in Terms of their Vertex-Induced Partitions

A. Dress, A. Spillner, J. Koolen, K. T. Huber, V. Moulton

arxiv:1402.4277 v2 · 2014-02-18 · 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{OTHN67XUIW35TJEV6YKEYSKMEK}

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	2026-05-18T02:57:35.223415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74cedf7ef445b7d9a495f6144c494c22bc75313e16ac4e9b6da48c458edffe8a

Aliases

arxiv: 1402.4277 · arxiv_version: 1402.4277v2 · doi: 10.48550/arxiv.1402.4277 · pith_short_12: OTHN67XUIW35 · pith_short_16: OTHN67XUIW35TJEV · pith_short_8: OTHN67XU

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/OTHN67XUIW35TJEV6YKEYSKMEK \
  | 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: 74cedf7ef445b7d9a495f6144c494c22bc75313e16ac4e9b6da48c458edffe8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65f1905bfc1c8c755543fd7586853612973b10fa0e9724e6f9a8052334c317ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-02-18T10:31:59Z",
    "title_canon_sha256": "cccd1bb65d6a4a121f7285482b351766dccc31d2a0b660c45a8ea5941e0ccdbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4277",
    "kind": "arxiv",
    "version": 2
  }
}