Pith Number

pith:HQZQS6VC

pith:2013:HQZQS6VCGSZDUUJS7QGNIUSZGY

not attested not anchored not stored refs pending

Rigidity theorems for glued spaces being suspensions, cones and joins in Alexandrov geometry with curvature bounded below

Hongwei Sun, Xiaole Su, Yusheng Wang

arxiv:1309.0912 v1 · 2013-09-04 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQZQS6VCGSZDUUJS7QGNIUSZGY}

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	2026-05-18T03:14:16.497995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c33097aa234b23a5132fc0cd452593601931f9d8a3250f0e5509a5286d8aad5

Aliases

arxiv: 1309.0912 · arxiv_version: 1309.0912v1 · doi: 10.48550/arxiv.1309.0912 · pith_short_12: HQZQS6VCGSZD · pith_short_16: HQZQS6VCGSZDUUJS · pith_short_8: HQZQS6VC

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/HQZQS6VCGSZDUUJS7QGNIUSZGY \
  | 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: 3c33097aa234b23a5132fc0cd452593601931f9d8a3250f0e5509a5286d8aad5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef7f8520ce6f482ba7f75fcffad965c6450f79db4ed8b3f9f5471302235095da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-09-04T04:40:50Z",
    "title_canon_sha256": "65b77a9a3107fc97e7a13328b7f417bc909c0f904e4f79eac96f7d8648d445ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0912",
    "kind": "arxiv",
    "version": 1
  }
}