Pith Number

pith:2ZKSTDBZ

pith:2013:2ZKSTDBZVSBQ5KWJ2CFQBUOUQB

not attested not anchored not stored refs pending

Fibred coarse embeddings, a-T-menability and the coarse analogue of the Novikov conjecture

Martin Finn-Sell

arxiv:1304.3348 v4 · 2013-04-11 · math.KT · math.GR · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZKSTDBZVSBQ5KWJ2CFQBUOUQB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:42:15.092051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d655298c39ac830eaac9d08b00d1d4806105ee8f3c033389559254f495725558

Aliases

arxiv: 1304.3348 · arxiv_version: 1304.3348v4 · doi: 10.48550/arxiv.1304.3348 · pith_short_12: 2ZKSTDBZVSBQ · pith_short_16: 2ZKSTDBZVSBQ5KWJ · pith_short_8: 2ZKSTDBZ

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/2ZKSTDBZVSBQ5KWJ2CFQBUOUQB \
  | 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: d655298c39ac830eaac9d08b00d1d4806105ee8f3c033389559254f495725558

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0570e39739380c1dba374009e85345d9a9b9db5e092c05e93bd09027a1c34c30",
    "cross_cats_sorted": [
      "math.GR",
      "math.OA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2013-04-11T15:52:17Z",
    "title_canon_sha256": "7c0eee47ca624dc099287e5cda92ae70fd8602b1efdce09f09b49c60ec6ae265"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3348",
    "kind": "arxiv",
    "version": 4
  }
}