Pith Number

pith:4QYRUWQI

pith:2013:4QYRUWQI64EAWSPEDG74AM5MCK

not attested not anchored not stored refs pending

On Separable Determination of Sigma-P-Porous Sets in Banach Spaces

Marek Cuth, Martin Rmoutil, Miroslav Zeleny

arxiv:1309.2174 v1 · 2013-09-09 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QYRUWQI64EAWSPEDG74AM5MCK}

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	2026-05-18T02:32:54.414213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4311a5a08f7080b49e419bfc033ac128eb8a4b18d064bb91faaddb9100ca721

Aliases

arxiv: 1309.2174 · arxiv_version: 1309.2174v1 · doi: 10.48550/arxiv.1309.2174 · pith_short_12: 4QYRUWQI64EA · pith_short_16: 4QYRUWQI64EAWSPE · pith_short_8: 4QYRUWQI

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/4QYRUWQI64EAWSPEDG74AM5MCK \
  | 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: e4311a5a08f7080b49e419bfc033ac128eb8a4b18d064bb91faaddb9100ca721

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f777c21b4c59807f3e989d17e5cecc7b1d558075528bc0021e73e10d7a254419",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-09-09T14:37:01Z",
    "title_canon_sha256": "387bd68de8ee6441a1198a86e30c012da9a12bd5d47d1a8ba56bb20602adc278"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2174",
    "kind": "arxiv",
    "version": 1
  }
}