Pith Number

pith:QHIDXBJ7

pith:2013:QHIDXBJ766TOA7PVGFZY6WE3RM

not attested not anchored not stored refs pending

Dimension invariants for groups admitting a cocompact model for proper actions

Conchita Martinez-Perez, Dieter Degrijse

arxiv:1311.6419 v2 · 2013-11-25 · math.AT · math.GR · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHIDXBJ766TOA7PVGFZY6WE3RM}

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	2026-05-18T02:26:01.011110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d03b853ff7a6e07df531738f589b8b274132721e7d8f3dbfcd91e9a3579db3

Aliases

arxiv: 1311.6419 · arxiv_version: 1311.6419v2 · doi: 10.48550/arxiv.1311.6419 · pith_short_12: QHIDXBJ766TO · pith_short_16: QHIDXBJ766TOA7PV · pith_short_8: QHIDXBJ7

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/QHIDXBJ766TOA7PVGFZY6WE3RM \
  | 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: 81d03b853ff7a6e07df531738f589b8b274132721e7d8f3dbfcd91e9a3579db3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1024a3664a8c6560f0248d557abc9ef996e35b1d6d6ca9d7b0e2f45419bb3a65",
    "cross_cats_sorted": [
      "math.GR",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2013-11-25T19:44:35Z",
    "title_canon_sha256": "5668ac4f05d6719a4e5cb49fc731c1e9e75178becf279878487666dd29ebad09"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.6419",
    "kind": "arxiv",
    "version": 2
  }
}