Pith Number

pith:OQD6CHQP

pith:2017:OQD6CHQP3BB6RJ67C7ZC2GQRE4

not attested not anchored not stored refs pending

CW-complexes in the Category of Small Categories

Andrew Salch, Christian Frank

arxiv:1711.08579 v1 · 2017-11-23 · math.CT · math.AT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQD6CHQP3BB6RJ67C7ZC2GQRE4}

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	2026-05-18T00:29:44.652161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7407e11e0fd843e8a7df17f22d1a112725b861e78c7fc8636bc67de6b8a0e557

Aliases

arxiv: 1711.08579 · arxiv_version: 1711.08579v1 · doi: 10.48550/arxiv.1711.08579 · pith_short_12: OQD6CHQP3BB6 · pith_short_16: OQD6CHQP3BB6RJ67 · pith_short_8: OQD6CHQP

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/OQD6CHQP3BB6RJ67C7ZC2GQRE4 \
  | 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: 7407e11e0fd843e8a7df17f22d1a112725b861e78c7fc8636bc67de6b8a0e557

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db3b983bf4106cb51d0f695c26675a7e5f1523edc20e1ae803b7078f288c0045",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2017-11-23T05:25:45Z",
    "title_canon_sha256": "1800fbd2aa1eb8035deb5b58a3e4adbba8ecabd8584f91ce1c27f43a9e908375"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08579",
    "kind": "arxiv",
    "version": 1
  }
}