Pith Number

pith:2INEBELB

pith:2014:2INEBELBGAJNVGOIMFPFWO5B2T

not attested not anchored not stored refs pending

Counting $4\times 4$ Matrix Partitions of Graphs

David Richerby, Leslie Ann Goldberg, Martin Dyer

arxiv:1407.7799 v4 · 2014-07-29 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2INEBELBGAJNVGOIMFPFWO5B2T}

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	2026-05-18T01:11:43.960238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d21a4091613012da99c8615e5b3ba1d4e9c5c5ec9781b6387bcfafd9cb6eaa47

Aliases

arxiv: 1407.7799 · arxiv_version: 1407.7799v4 · doi: 10.48550/arxiv.1407.7799 · pith_short_12: 2INEBELBGAJN · pith_short_16: 2INEBELBGAJNVGOI · pith_short_8: 2INEBELB

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/2INEBELBGAJNVGOIMFPFWO5B2T \
  | 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: d21a4091613012da99c8615e5b3ba1d4e9c5c5ec9781b6387bcfafd9cb6eaa47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c34612afafdcab76e61f1ba9bcad20a5769892cb8a48ade7078889d13af0bdf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-07-29T17:54:05Z",
    "title_canon_sha256": "68cf8d5c6284c595efa1c29595813722d6962249f9961d537f59db09ef9d0b8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7799",
    "kind": "arxiv",
    "version": 4
  }
}