Pith Number

pith:GHO44OXT

pith:2011:GHO44OXTMDMUZR5UUG37EYR4F4

not attested not anchored not stored refs pending

Qu'est-ce qu'une esp\`ece de structures? Gen\`ese et description

Francois Bergeron, Gilbert Labelle

arxiv:1105.5406 v1 · 2011-05-26 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHO44OXTMDMUZR5UUG37EYR4F4}

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	2026-05-18T04:21:11.897052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31ddce3af360d94cc7b4a1b7f2623c2f1134983e16137b028b517754b73dba46

Aliases

arxiv: 1105.5406 · arxiv_version: 1105.5406v1 · doi: 10.48550/arxiv.1105.5406 · pith_short_12: GHO44OXTMDMU · pith_short_16: GHO44OXTMDMUZR5U · pith_short_8: GHO44OXT

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/GHO44OXTMDMUZR5UUG37EYR4F4 \
  | 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: 31ddce3af360d94cc7b4a1b7f2623c2f1134983e16137b028b517754b73dba46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "282a229409566063d7d6014940b076fae6443ca42f34663dde1df68e27fb6846",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2011-05-26T21:04:26Z",
    "title_canon_sha256": "ec6e4d7d98b917488d625294cacecbd1386f6ada7e0c0f6ea546c446ecc6969c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5406",
    "kind": "arxiv",
    "version": 1
  }
}