Pith Number

pith:EPNWQTNV

pith:2013:EPNWQTNVGASTVUWGW2RS4C7S2D

not attested not anchored not stored refs pending

Toat Dominator Chromatic number of a Graph

Adel P. Kazemi

arxiv:1307.7486 v1 · 2013-07-29 · 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{EPNWQTNVGASTVUWGW2RS4C7S2D}

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	2026-05-18T00:08:24.413065Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23db684db530253ad2c6b6a32e0bf2d0d658fde736dd4231d9eb155120da6150

Aliases

arxiv: 1307.7486 · arxiv_version: 1307.7486v1 · doi: 10.48550/arxiv.1307.7486 · pith_short_12: EPNWQTNVGAST · pith_short_16: EPNWQTNVGASTVUWG · pith_short_8: EPNWQTNV

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/EPNWQTNVGASTVUWGW2RS4C7S2D \
  | 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: 23db684db530253ad2c6b6a32e0bf2d0d658fde736dd4231d9eb155120da6150

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ab315e7293dc99bfe144c23e559f8a24624aee6ff07298c88c281007cd6bb2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-07-29T07:23:45Z",
    "title_canon_sha256": "647a8de6e51d8ce10cdd38dc5da7d74c6d6fb8d2ae49600e9dacf08d7e2efc38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7486",
    "kind": "arxiv",
    "version": 1
  }
}