Pith Number

pith:HOWWY7QX

pith:2014:HOWWY7QXFIITPRUJ6HPV65X7E4

not attested not anchored not stored refs pending

On the Van Est homomorphism for Lie groupoids

David Li-Bland, Eckhard Meinrenken

arxiv:1403.1191 v1 · 2014-03-05 · math.DG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HOWWY7QXFIITPRUJ6HPV65X7E4}

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	2026-05-18T02:57:00.436291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bad6c7e172a1137c689f1df5f76ff272b8682891bbc799f910bcf811b9272b1

Aliases

arxiv: 1403.1191 · arxiv_version: 1403.1191v1 · doi: 10.48550/arxiv.1403.1191 · pith_short_12: HOWWY7QXFIIT · pith_short_16: HOWWY7QXFIITPRUJ · pith_short_8: HOWWY7QX

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/HOWWY7QXFIITPRUJ6HPV65X7E4 \
  | 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: 3bad6c7e172a1137c689f1df5f76ff272b8682891bbc799f910bcf811b9272b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45ba87f3a1f06d0a0b3c94a44469b1279fe46a03cf11b516567602e3e9c55636",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-03-05T17:01:06Z",
    "title_canon_sha256": "d0413154a12d2ce05dd651c10577fd4dfaad25eccbc558e874c448425efad644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1191",
    "kind": "arxiv",
    "version": 1
  }
}