Pith Number

pith:C4P7VBGE

pith:2014:C4P7VBGEU56QAHL4TI4C6XTW3X

not attested not anchored not stored refs pending

Free and properly discontinuous actions of groups on homotopy $2n$-spheres

Daciberg Lima Goncalves, Marek Golasinski, Rolando Jimenez

arxiv:1402.0124 v1 · 2014-02-01 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4P7VBGEU56QAHL4TI4C6XTW3X}

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	2026-05-18T01:31:46.759619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

171ffa84c4a77d001d7c9a382f5e76ddcd0221ae175af389e5651943f71ff939

Aliases

arxiv: 1402.0124 · arxiv_version: 1402.0124v1 · doi: 10.48550/arxiv.1402.0124 · pith_short_12: C4P7VBGEU56Q · pith_short_16: C4P7VBGEU56QAHL4 · pith_short_8: C4P7VBGE

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/C4P7VBGEU56QAHL4TI4C6XTW3X \
  | 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: 171ffa84c4a77d001d7c9a382f5e76ddcd0221ae175af389e5651943f71ff939

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc36f999f80482509288a12bec403ed9b3dc6723eb6c83af0024410bd4092c37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2014-02-01T20:55:15Z",
    "title_canon_sha256": "eaf064bdc5fd2a714e38bfb761627605106864f1c77ef855d4799cae25f884e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0124",
    "kind": "arxiv",
    "version": 1
  }
}