Pith Number

pith:MHDDJGDR

pith:2017:MHDDJGDR6LKF65SN2EAIDR4IZ5

not attested not anchored not stored refs pending

Induced subgraphs of graphs with large chromatic number. XI. Orientations

Alex Scott, Maria Chudnovsky, Paul Seymour

arxiv:1711.07679 v2 · 2017-11-21 · 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{MHDDJGDR6LKF65SN2EAIDR4IZ5}

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	2026-05-18T00:06:30.879628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61c6349871f2d45f764dd10081c788cf7372fa0d6285f59f2f30d8f247c9ea34

Aliases

arxiv: 1711.07679 · arxiv_version: 1711.07679v2 · doi: 10.48550/arxiv.1711.07679 · pith_short_12: MHDDJGDR6LKF · pith_short_16: MHDDJGDR6LKF65SN · pith_short_8: MHDDJGDR

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/MHDDJGDR6LKF65SN2EAIDR4IZ5 \
  | 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: 61c6349871f2d45f764dd10081c788cf7372fa0d6285f59f2f30d8f247c9ea34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "919357c008dafa70cd733c419fb82a3af5679ad963903f6f009d6bdca52269e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-11-21T08:58:15Z",
    "title_canon_sha256": "33834987ee2277457fce27649502dacb5b64f6d5abdd93aa7c89975077567a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07679",
    "kind": "arxiv",
    "version": 2
  }
}