Pith Number

pith:7QYUONOA

pith:2017:7QYUONOAQY4WGJDCEMAAD6RQAB

not attested not anchored not stored refs pending

Homotopy type of the independence complexes of a family of regular bipartite graphs

Nandini Nilakantan, Samir Shukla

arxiv:1709.04789 v1 · 2017-09-14 · 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{7QYUONOAQY4WGJDCEMAAD6RQAB}

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	2026-05-18T00:35:10.171263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc314735c08639632462230001fa30004cb7f58bb35474a7eab548136569d2b2

Aliases

arxiv: 1709.04789 · arxiv_version: 1709.04789v1 · doi: 10.48550/arxiv.1709.04789 · pith_short_12: 7QYUONOAQY4W · pith_short_16: 7QYUONOAQY4WGJDC · pith_short_8: 7QYUONOA

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/7QYUONOAQY4WGJDCEMAAD6RQAB \
  | 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: fc314735c08639632462230001fa30004cb7f58bb35474a7eab548136569d2b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61f92cb7564046e6d39dee4a9f3d808e80a26bbaa649da2f198addf7985bfe00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-09-14T13:39:12Z",
    "title_canon_sha256": "72fcaf09d49d8d870411426404f9763f2a2120cff950b3ae63a758a94e8a57d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.04789",
    "kind": "arxiv",
    "version": 1
  }
}