Pith Number

pith:7UU2APNW

pith:2013:7UU2APNW6ZZW6RTQCNAPVLZYWQ

not attested not anchored not stored refs pending

Universal nowhere dense subsets of locally compact manifolds

Dusan Repovs, Taras Banakh

arxiv:1302.5651 v2 · 2013-02-22 · math.GT · 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{7UU2APNW6ZZW6RTQCNAPVLZYWQ}

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	2026-05-18T02:41:42.529504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd29a03db6f6736f46701340faaf38b434bce791e0acc99575f5cdabe6e83f30

Aliases

arxiv: 1302.5651 · arxiv_version: 1302.5651v2 · doi: 10.48550/arxiv.1302.5651 · pith_short_12: 7UU2APNW6ZZW · pith_short_16: 7UU2APNW6ZZW6RTQ · pith_short_8: 7UU2APNW

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/7UU2APNW6ZZW6RTQCNAPVLZYWQ \
  | 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: fd29a03db6f6736f46701340faaf38b434bce791e0acc99575f5cdabe6e83f30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6d8104ceacda7b1d3c45afdccc8f6fa1633cee01ff4fa26ad158eaaccabf240",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2013-02-22T17:25:49Z",
    "title_canon_sha256": "bb3df0e832e8dd638b42cb9268133de385995c91cef20d30127b8c0ed0188643"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5651",
    "kind": "arxiv",
    "version": 2
  }
}