Pith Number

pith:LJJ6HMJN

pith:2019:LJJ6HMJNEJFN2VRLVZME7OZ7NC

not attested not anchored not stored refs pending

Existence d'une courbe \`a courbure positive maximisant le minimum du rayon de courbure -- "Observation num\'erique"

J\'er\^ome Bastien

arxiv:1906.10010 v1 · 2019-06-19 · 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{LJJ6HMJNEJFN2VRLVZME7OZ7NC}

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	2026-05-17T23:40:38.634524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a53e3b12d224add562bae584fbb3f68a21968aa3bf32f31c682a9d20780f5b8

Aliases

arxiv: 1906.10010 · arxiv_version: 1906.10010v1 · doi: 10.48550/arxiv.1906.10010 · pith_short_12: LJJ6HMJNEJFN · pith_short_16: LJJ6HMJNEJFN2VRL · pith_short_8: LJJ6HMJN

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/LJJ6HMJNEJFN2VRLVZME7OZ7NC \
  | 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: 5a53e3b12d224add562bae584fbb3f68a21968aa3bf32f31c682a9d20780f5b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28fcc36670207c8bbd3851070dc13159977ac77e9bf3f9b27ee24f39c79a721b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-06-19T07:58:16Z",
    "title_canon_sha256": "e7b18c55b838b5d485f9ca339b8ac08840c1d8de36640698b859e2307e5400fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10010",
    "kind": "arxiv",
    "version": 1
  }
}