Pith Number

pith:VSRPDQYE

pith:2010:VSRPDQYELEFVCTUIRO4N6TPJY2

not attested not anchored not stored refs pending

Topological classification of quasitoric manifolds with the second Betti number 2

Dong Youp Suh, Seonjeong Park, Suyoung Choi

arxiv:1005.5431 v2 · 2010-05-29 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSRPDQYELEFVCTUIRO4N6TPJY2}

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	2026-05-18T03:45:21.395117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aca2f1c304590b514e888bb8df4de9c6bcf8454f6b7d06487504d956eb75355e

Aliases

arxiv: 1005.5431 · arxiv_version: 1005.5431v2 · doi: 10.48550/arxiv.1005.5431 · pith_short_12: VSRPDQYELEFV · pith_short_16: VSRPDQYELEFVCTUI · pith_short_8: VSRPDQYE

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/VSRPDQYELEFVCTUIRO4N6TPJY2 \
  | 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: aca2f1c304590b514e888bb8df4de9c6bcf8454f6b7d06487504d956eb75355e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "451710d3f128262aff8775837ce58b70d5d9770a55c20456686a5f23e98cd951",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-05-29T06:30:57Z",
    "title_canon_sha256": "5e6f6a814429a335bf74c75719f5702ca829a4ef361143af01d6c1d4a10f6025"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5431",
    "kind": "arxiv",
    "version": 2
  }
}