Pith Number

pith:Y5BW2KUZ

pith:2012:Y5BW2KUZAJPFNPNRO5Y2M5NSCV

not attested not anchored not stored refs pending

Cardinal functions on continuous images of orderable compacta and applications

Ahmad Farhat

arxiv:1207.6377 v2 · 2012-07-26 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5BW2KUZAJPFNPNRO5Y2M5NSCV}

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	2026-05-18T00:59:28.305943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7436d2a99025e56bdb17771a675b2155edb7a08aa7cf3d97a123f5cf6956def

Aliases

arxiv: 1207.6377 · arxiv_version: 1207.6377v2 · doi: 10.48550/arxiv.1207.6377 · pith_short_12: Y5BW2KUZAJPF · pith_short_16: Y5BW2KUZAJPFNPNR · pith_short_8: Y5BW2KUZ

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/Y5BW2KUZAJPFNPNRO5Y2M5NSCV \
  | 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: c7436d2a99025e56bdb17771a675b2155edb7a08aa7cf3d97a123f5cf6956def

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71712c708f2953753d6f7d7a90adb9359e4959d4000a2078c727da53af4412fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2012-07-26T19:21:23Z",
    "title_canon_sha256": "d998fe9efeff916ab21597b246b5a1c3bf07e7c57967e5f41aad6dabc8ea2506"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6377",
    "kind": "arxiv",
    "version": 2
  }
}