Pith Number

pith:44HQ2EYN

pith:2011:44HQ2EYNTMSOGTQKKGO6S3VBS6

not attested not anchored not stored refs pending

Glanon groupoids

Madeleine Jotz, Mathieu Sti\'enon, Ping Xu

arxiv:1109.5011 v2 · 2011-09-23 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44HQ2EYNTMSOGTQKKGO6S3VBS6}

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	2026-05-18T00:38:36.931489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e70f0d130d9b24e34e0a519de96ea19788f1dea4c873f21e8118b544729b27fd

Aliases

arxiv: 1109.5011 · arxiv_version: 1109.5011v2 · doi: 10.48550/arxiv.1109.5011 · pith_short_12: 44HQ2EYNTMSO · pith_short_16: 44HQ2EYNTMSOGTQK · pith_short_8: 44HQ2EYN

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/44HQ2EYNTMSOGTQKKGO6S3VBS6 \
  | 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: e70f0d130d9b24e34e0a519de96ea19788f1dea4c873f21e8118b544729b27fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a4263745793c140a759aac15e962d474b25faeceb8b81e72ac702c71b963a91",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-09-23T07:26:31Z",
    "title_canon_sha256": "1f07a2f2d975db435350161f7d592521ebb8d6098e7abe887c8cb5199881e595"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5011",
    "kind": "arxiv",
    "version": 2
  }
}