Pith Number

pith:JZD2LHT6

pith:2011:JZD2LHT6NUD3CXLOUXLHMVJPZH

not attested not anchored not stored refs pending

Invariant prolongation of overdetermined PDE's in projective, conformal and Grassmannian geometry

Josef \v{S}ilhan, Matthias Hammerl, Petr Somberg, Vladim\'ir Sou\v{c}ek

arxiv:1103.3141 v1 · 2011-03-16 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JZD2LHT6NUD3CXLOUXLHMVJPZH}

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	2026-05-18T04:26:44.732218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e47a59e7e6d07b15d6ea5d676552fc9e2f88f333900a5414b364ae87b4597a0

Aliases

arxiv: 1103.3141 · arxiv_version: 1103.3141v1 · doi: 10.48550/arxiv.1103.3141 · pith_short_12: JZD2LHT6NUD3 · pith_short_16: JZD2LHT6NUD3CXLO · pith_short_8: JZD2LHT6

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/JZD2LHT6NUD3CXLOUXLHMVJPZH \
  | 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: 4e47a59e7e6d07b15d6ea5d676552fc9e2f88f333900a5414b364ae87b4597a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c998d484237e93787d004e354976e4f3bc45128ad1cde6622fddbb326f4a0a",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-03-16T10:50:14Z",
    "title_canon_sha256": "dd2a2211fd661af8da0cdf6eae3559f74b28996ce91cb3d8cb514724b6902daa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3141",
    "kind": "arxiv",
    "version": 1
  }
}