Pith Number

pith:CQOMIG54

pith:2015:CQOMIG54AFK35ZTVLQBT73IT5L

not attested not anchored not stored refs pending

A condition that prevents groups from acting fixed point free on cube complexes

Olga Varghese

arxiv:1508.06430 v3 · 2015-08-26 · math.GR · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQOMIG54AFK35ZTVLQBT73IT5L}

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	2026-05-18T00:16:14.962962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

141cc41bbc0155bee6755c033fed13eac4d7a0d979af9bc402d56f06437c567b

Aliases

arxiv: 1508.06430 · arxiv_version: 1508.06430v3 · doi: 10.48550/arxiv.1508.06430 · pith_short_12: CQOMIG54AFK3 · pith_short_16: CQOMIG54AFK35ZTV · pith_short_8: CQOMIG54

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/CQOMIG54AFK35ZTVLQBT73IT5L \
  | 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: 141cc41bbc0155bee6755c033fed13eac4d7a0d979af9bc402d56f06437c567b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38c1d75b4ba6800df1a75a704599a0f3dc50863747418b9fa61770ac678e194d",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-08-26T09:59:45Z",
    "title_canon_sha256": "5539a8d076fe9601bc19d871e8e11b37a6c5fe27f5692cdcf3808faccb7d82ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06430",
    "kind": "arxiv",
    "version": 3
  }
}