Pith Number

pith:6SZCDAXJ

pith:2009:6SZCDAXJFHPJILDLIPSW57CTPD

not attested not anchored not stored refs pending

Keller--Osserman conditions for diffusion-type operators on Riemannian Manifolds

Alberto G. Setti, Luciano Mari, Marco Rigoli

arxiv:0904.4647 v1 · 2009-04-29 · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6SZCDAXJFHPJILDLIPSW57CTPD}

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	2026-05-18T04:18:13.101137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4b22182e929de942c6b43e56efc5378d5bc0cd555cc46a7bdefa71fe81187db

Aliases

arxiv: 0904.4647 · arxiv_version: 0904.4647v1 · doi: 10.48550/arxiv.0904.4647 · pith_short_12: 6SZCDAXJFHPJ · pith_short_16: 6SZCDAXJFHPJILDL · pith_short_8: 6SZCDAXJ

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/6SZCDAXJFHPJILDLIPSW57CTPD \
  | 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: f4b22182e929de942c6b43e56efc5378d5bc0cd555cc46a7bdefa71fe81187db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "274e1dddd11b27d0e375a381bad5592797da3c9e1f32903e6e04e856b616cba6",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-04-29T15:51:09Z",
    "title_canon_sha256": "7e6cd10f01df1437c700e64a2e493a56748e515307d597bb84f24b39cb6cd615"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4647",
    "kind": "arxiv",
    "version": 1
  }
}