Pith Number

pith:DMLHDYGZ

pith:2016:DMLHDYGZ7Q2UDBF4K5Q46MTPS7

not attested not anchored not stored refs pending

Bipartite graphs and their dessins d'enfants

Ruben A. Hidalgo

arxiv:1611.02901 v2 · 2016-11-09 · 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{DMLHDYGZ7Q2UDBF4K5Q46MTPS7}

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	2026-05-18T00:36:52.214172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b1671e0d9fc354184bc5761cf326f97da7885ce72f11aca273a397181ccc94e

Aliases

arxiv: 1611.02901 · arxiv_version: 1611.02901v2 · doi: 10.48550/arxiv.1611.02901 · pith_short_12: DMLHDYGZ7Q2U · pith_short_16: DMLHDYGZ7Q2UDBF4 · pith_short_8: DMLHDYGZ

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/DMLHDYGZ7Q2UDBF4K5Q46MTPS7 \
  | 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: 1b1671e0d9fc354184bc5761cf326f97da7885ce72f11aca273a397181ccc94e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9270bad298cf42e7bd70fc140b94c8aa127f04512d820ee36a2ac99a999cf5e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-11-09T12:45:37Z",
    "title_canon_sha256": "99032654cf70f5f7ebf5b2d1b70dbd68ae56ee2d20effa12bf652751ada792f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.02901",
    "kind": "arxiv",
    "version": 2
  }
}