Pith Number

pith:6YFX36ZE

pith:1997:6YFX36ZEHECNRRW7EJAS6OTOGL

not attested not anchored not stored refs pending

A closed model structure for $n$-categories, internal $Hom$, $n$-stacks and generalized Seifert-Van Kampen

Carlos Simpson

arxiv:alg-geom/9704006 v2 · 1997-04-10 · alg-geom · math.AG · math.QA · q-alg

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YFX36ZEHECNRRW7EJAS6OTOGL}

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.

Cited by

2 papers in Pith

An Oriented Street--Roberts Conjecture

Homotopy Posets, Postnikov Towers, and Hypercompletions of $\infty$-Categories

Receipt and verification

First computed	2026-07-04T15:07:37.055624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f60b7dfb243904d8c6df22412f3a6e32f7a1b52d90f0bf55a8da8f286b837262

Aliases

arxiv: alg-geom/9704006 · arxiv_version: alg-geom/9704006v2 · doi: 10.48550/arxiv.alg-geom/9704006 · pith_short_12: 6YFX36ZEHECN · pith_short_16: 6YFX36ZEHECNRRW7 · pith_short_8: 6YFX36ZE

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/6YFX36ZEHECNRRW7EJAS6OTOGL \
  | 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: f60b7dfb243904d8c6df22412f3a6e32f7a1b52d90f0bf55a8da8f286b837262

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d61fae61e43fd67eeb70435f8ba680f1f815ac2e9fefbccec02c782b11c18ee",
    "cross_cats_sorted": [
      "math.AG",
      "math.QA",
      "q-alg"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1997-04-10T07:58:36Z",
    "title_canon_sha256": "9c0fe12b887e37947baa2ae9678793346cf4f6883dc3c1fa03efa7c544aa5995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9704006",
    "kind": "arxiv",
    "version": 2
  }
}