Pith Number

pith:QQ4OGTAZ

pith:2019:QQ4OGTAZOQMVSWSVUUAI4QHAXN

not attested not anchored not stored refs pending

Extending partial automorphisms of $n$-partite tournaments

Colin Jahel, Jan Hubi\v{c}ka, Marcin Sabok, Mat\v{e}j Kone\v{c}n\'y

arxiv:1903.07476 v1 · 2019-03-18 · math.CO · cs.DM · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQ4OGTAZOQMVSWSVUUAI4QHAXN}

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	2026-05-17T23:51:01.315024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8438e34c197419595a55a5008e40e0bb488294b87b389cc7df12e805a4cb7c76

Aliases

arxiv: 1903.07476 · arxiv_version: 1903.07476v1 · doi: 10.48550/arxiv.1903.07476 · pith_short_12: QQ4OGTAZOQMV · pith_short_16: QQ4OGTAZOQMVSWSV · pith_short_8: QQ4OGTAZ

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/QQ4OGTAZOQMVSWSVUUAI4QHAXN \
  | 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: 8438e34c197419595a55a5008e40e0bb488294b87b389cc7df12e805a4cb7c76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28530ff1c2aa79dfd3be3b51c149cb6733f64b1248203d09a939e681e1cbebe3",
    "cross_cats_sorted": [
      "cs.DM",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-18T14:34:35Z",
    "title_canon_sha256": "bf3586a0941d6e5d5bd621dc7f22fd9c5f0f4c029015b67f2611113e7951f108"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07476",
    "kind": "arxiv",
    "version": 1
  }
}