Pith Number

pith:RYO7G53I

pith:2014:RYO7G53I6LGHE2IMK7LPQZD5NX

not attested not anchored not stored refs pending

Productively Lindel\"of spaces and the covering property of Hurewicz

Du\v{s}an Repov\v{s}, Lyubomyr Zdomskyy

arxiv:1406.0696 v1 · 2014-06-03 · math.GN · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RYO7G53I6LGHE2IMK7LPQZD5NX}

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	2026-05-18T02:50:33.023950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e1df37768f2cc72690c57d6f8647d6dd4d25f46c119607a4167dc0379a732a9

Aliases

arxiv: 1406.0696 · arxiv_version: 1406.0696v1 · doi: 10.48550/arxiv.1406.0696 · pith_short_12: RYO7G53I6LGH · pith_short_16: RYO7G53I6LGHE2IM · pith_short_8: RYO7G53I

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/RYO7G53I6LGHE2IMK7LPQZD5NX \
  | 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: 8e1df37768f2cc72690c57d6f8647d6dd4d25f46c119607a4167dc0379a732a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "096786d125dafe42dd69b314751af768ee05b91dd40c0479bd6720e5f6e19255",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2014-06-03T13:04:22Z",
    "title_canon_sha256": "da341eb4e9420a50c80a07a6589241fda40247c39eec866eaa38a3573d2cf624"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.0696",
    "kind": "arxiv",
    "version": 1
  }
}