Pith Number

pith:YSGMCR3Q

pith:2017:YSGMCR3Q2UZ24KQ3XMJ2IFWHUT

not attested not anchored not stored refs pending

Induced subgraphs of graphs with large chromatic number. XII. Distant stars

Alex Scott, Maria Chudnovsky, Paul Seymour

arxiv:1711.08612 v2 · 2017-11-23 · 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{YSGMCR3Q2UZ24KQ3XMJ2IFWHUT}

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	2026-05-17T23:59:03.633725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c48cc14770d533ae2a1bbb13a416c7a4e322c2af85762222e7d1e401a4c61f2a

Aliases

arxiv: 1711.08612 · arxiv_version: 1711.08612v2 · doi: 10.48550/arxiv.1711.08612 · pith_short_12: YSGMCR3Q2UZ2 · pith_short_16: YSGMCR3Q2UZ24KQ3 · pith_short_8: YSGMCR3Q

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/YSGMCR3Q2UZ24KQ3XMJ2IFWHUT \
  | 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: c48cc14770d533ae2a1bbb13a416c7a4e322c2af85762222e7d1e401a4c61f2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e08c89409781156ed381977110d4e09b76a84b6153f016e73fdfbcf7b7a10b7c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-23T08:32:11Z",
    "title_canon_sha256": "21c0f9c92e94d17e22067fed0f107a88425b01bab7eca0b1b16e9a6ad9640dee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08612",
    "kind": "arxiv",
    "version": 2
  }
}