Pith Number

pith:MZWU6OML

pith:2011:MZWU6OML54S2UH7OV3ENIBPK3G

not attested not anchored not stored refs pending

On Darboux's Approach to R-Separability of Variables

Adam Szereszewski, Antoni Sym

arxiv:1102.2637 v2 · 2011-02-13 · math-ph · math.DG · math.MP · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MZWU6OML54S2UH7OV3ENIBPK3G}

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	2026-05-18T04:11:08.435459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

666d4f398bef25aa1feeaec8d405ead9953f7687e3d45e2c73d635394a028f21

Aliases

arxiv: 1102.2637 · arxiv_version: 1102.2637v2 · doi: 10.48550/arxiv.1102.2637 · pith_short_12: MZWU6OML54S2 · pith_short_16: MZWU6OML54S2UH7O · pith_short_8: MZWU6OML

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/MZWU6OML54S2UH7OV3ENIBPK3G \
  | 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: 666d4f398bef25aa1feeaec8d405ead9953f7687e3d45e2c73d635394a028f21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "156d45fb0a10ab58a5e1ec6530ba1975aef0c6466207fb11e32a70ed943062bf",
    "cross_cats_sorted": [
      "math.DG",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2011-02-13T20:50:25Z",
    "title_canon_sha256": "37c61f4304b1efd2d325b8f1f7d830c868be3618d9b89f080f8b03263a6e965e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2637",
    "kind": "arxiv",
    "version": 2
  }
}