Pith Number

pith:AF26A2QV

pith:2014:AF26A2QVAS2BE3XCKE4VHRFDQE

not attested not anchored not stored refs pending

Complete Bredon cohomology and its applications to hierarchically defined groups

Brita E.A. Nucinkis, Nansen Petrosyan

arxiv:1402.2134 v1 · 2014-02-10 · math.GR · 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{AF26A2QVAS2BE3XCKE4VHRFDQE}

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	2026-05-18T01:13:17.046939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0175e06a1504b4126ee2513953c4a38107381cd6cd1cc8337b6948639730862a

Aliases

arxiv: 1402.2134 · arxiv_version: 1402.2134v1 · doi: 10.48550/arxiv.1402.2134 · pith_short_12: AF26A2QVAS2B · pith_short_16: AF26A2QVAS2BE3XC · pith_short_8: AF26A2QV

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/AF26A2QVAS2BE3XCKE4VHRFDQE \
  | 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: 0175e06a1504b4126ee2513953c4a38107381cd6cd1cc8337b6948639730862a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed3bcaa505c491b1df75c911483132ca60705987b1ffd452ce8452a1536c8ef7",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-02-10T13:15:02Z",
    "title_canon_sha256": "b80ea23ce475f221aa6d14cba97ef4b30dce89efeea8228cab07bbffbea99be5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2134",
    "kind": "arxiv",
    "version": 1
  }
}