Pith Number

pith:DAGSOVUX

pith:2014:DAGSOVUXQG76COBWYHOFDJWDZC

not attested not anchored not stored refs pending

A model structure on internal categories in simplicial sets

Geoffroy Horel

arxiv:1403.6873 v5 · 2014-03-26 · math.AT · 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{DAGSOVUXQG76COBWYHOFDJWDZC}

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	2026-05-18T01:02:46.095191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

180d27569781bfe13836c1dc51a6c3c8a7ebd6fae1181ba272a42eb10507d8c2

Aliases

arxiv: 1403.6873 · arxiv_version: 1403.6873v5 · doi: 10.48550/arxiv.1403.6873 · pith_short_12: DAGSOVUXQG76 · pith_short_16: DAGSOVUXQG76COBW · pith_short_8: DAGSOVUX

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/DAGSOVUXQG76COBWYHOFDJWDZC \
  | 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: 180d27569781bfe13836c1dc51a6c3c8a7ebd6fae1181ba272a42eb10507d8c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e959fc3aef2ff0c50a986cc5b51ac003dfec7e881676fc23b9a3e7f9861fb626",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-03-26T22:00:55Z",
    "title_canon_sha256": "9df71680a738005f2899d6be5db58eee6d1611b84782fc07596d787689f50807"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6873",
    "kind": "arxiv",
    "version": 5
  }
}