Pith Number

pith:KYDPSSXY

pith:2010:KYDPSSXY32NWP2XPIJ7EVKFAII

not attested not anchored not stored refs pending

Geodesic diameter of sets defined by few quadratic equations and inequalities

Michel Coste (IRMAR), Seydou Moussa

arxiv:1009.0452 v1 · 2010-09-02 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KYDPSSXY32NWP2XPIJ7EVKFAII}

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	2026-05-18T03:44:47.487402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5606f94af8de9b67eaef427e4aa8a0423b1ad7bf7b7af15135ee6795ddfd389c

Aliases

arxiv: 1009.0452 · arxiv_version: 1009.0452v1 · doi: 10.48550/arxiv.1009.0452 · pith_short_12: KYDPSSXY32NW · pith_short_16: KYDPSSXY32NWP2XP · pith_short_8: KYDPSSXY

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/KYDPSSXY32NWP2XPIJ7EVKFAII \
  | 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: 5606f94af8de9b67eaef427e4aa8a0423b1ad7bf7b7af15135ee6795ddfd389c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d5870be46244442f194c48cffdb94ebc178891105756293f5e1cd922c1dacdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-09-02T15:28:12Z",
    "title_canon_sha256": "70591ca9541a528abfd61d6a5b3d627f07f6aa8af13f73d6d2896dc14599ffc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0452",
    "kind": "arxiv",
    "version": 1
  }
}