Pith Number

pith:QHUZ7273

pith:2018:QHUZ7273A4BLN6BIRKHXAITCOY

not attested not anchored not stored refs pending

Incidence hypergraphs: The categorical inconsistency of set-systems and a characterization of quiver exponentials

Lucas J. Rusnak, Will Grilliette

arxiv:1805.07670 v2 · 2018-05-19 · math.CO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHUZ7273A4BLN6BIRKHXAITCOY}

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	2026-05-17T23:47:07.450831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e99febfb0702b6f8288a8f70226276007aeb6653887a481bea8f91878673e9

Aliases

arxiv: 1805.07670 · arxiv_version: 1805.07670v2 · doi: 10.48550/arxiv.1805.07670 · pith_short_12: QHUZ7273A4BL · pith_short_16: QHUZ7273A4BLN6BI · pith_short_8: QHUZ7273

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/QHUZ7273A4BLN6BIRKHXAITCOY \
  | 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: 81e99febfb0702b6f8288a8f70226276007aeb6653887a481bea8f91878673e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f324994c6ea315d8ad718b22126c502f6cca5178d9c9b267efc9d690a03c071c",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-19T22:35:40Z",
    "title_canon_sha256": "3f96d32d296dae7f7a36c72d65ec3e31c75e268b6a4b94436da529dda0d9e8ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07670",
    "kind": "arxiv",
    "version": 2
  }
}