Pith Number

pith:WO4A7XV3

pith:2014:WO4A7XV33VEOYDRQ5XLBSBDPDY

not attested not anchored not stored refs pending

Non-Simplicial Nerves for Two-Dimensional Categorical Structures

Nathaniel Watson

arxiv:1401.7748 v1 · 2014-01-30 · math.CT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WO4A7XV33VEOYDRQ5XLBSBDPDY}

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	2026-05-18T03:00:38.564336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3b80fdebbdd48ec0e30edd619046f1e0a54da4919f6e43260a9a969dc355b53

Aliases

arxiv: 1401.7748 · arxiv_version: 1401.7748v1 · doi: 10.48550/arxiv.1401.7748 · pith_short_12: WO4A7XV33VEO · pith_short_16: WO4A7XV33VEOYDRQ · pith_short_8: WO4A7XV3

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/WO4A7XV33VEOYDRQ5XLBSBDPDY \
  | 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: b3b80fdebbdd48ec0e30edd619046f1e0a54da4919f6e43260a9a969dc355b53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66355ce230d3a4ac061b4a5dab492dfc22c69b52a9d4948ce4f689cd40f65172",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2014-01-30T05:47:11Z",
    "title_canon_sha256": "10292ea620b823adda3a5ff7f82ea8d9ea4ae0a392642e62f0e252950bc462b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7748",
    "kind": "arxiv",
    "version": 1
  }
}