Pith Number

pith:KSEVICS2

pith:2005:KSEVICS2NNGZ6XELQLRJ3JT3UF

not attested not anchored not stored refs pending

Blaschke addition and convex polyhedra

Natalia Kopteva, S. S. Kutateladze, Victor Alexandrov

arxiv:math/0502345 v1 · 2005-02-16 · math.MG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KSEVICS2NNGZ6XELQLRJ3JT3UF}

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	2026-05-18T01:05:23.734944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5489540a5a6b4d9f5c8b82e29da67ba159da23d5e011e12d99b0f00f68033072

Aliases

arxiv: math/0502345 · arxiv_version: math/0502345v1 · doi: 10.48550/arxiv.math/0502345 · pith_short_12: KSEVICS2NNGZ · pith_short_16: KSEVICS2NNGZ6XEL · pith_short_8: KSEVICS2

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/KSEVICS2NNGZ6XELQLRJ3JT3UF \
  | 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: 5489540a5a6b4d9f5c8b82e29da67ba159da23d5e011e12d99b0f00f68033072

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e4f8cfc4b9494e237e57edb17ce2809d46b269822fac8afbbebdba37f03b229",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "",
    "primary_cat": "math.MG",
    "submitted_at": "2005-02-16T13:31:53Z",
    "title_canon_sha256": "c446e02d6cbc4f7ea7c017189a218083330a7a52d56cbe1e057ca9b734080958"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0502345",
    "kind": "arxiv",
    "version": 1
  }
}