Pith Number

pith:P6A5MZML

pith:2013:P6A5MZMLLSXYTC423C2MJ6KIMM

not attested not anchored not stored refs pending

Inverse variational problem for non-standard Lagrangians

Aparna Saha, B Talukdar

arxiv:1305.6386 v1 · 2013-05-28 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6A5MZMLLSXYTC423C2MJ6KIMM}

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	2026-05-18T01:49:40.918881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f81d6658b5caf898b9ad8b4c4f948633ac04978dce2ff0452258fdb7b6f32d5

Aliases

arxiv: 1305.6386 · arxiv_version: 1305.6386v1 · doi: 10.48550/arxiv.1305.6386 · pith_short_12: P6A5MZMLLSXY · pith_short_16: P6A5MZMLLSXYTC42 · pith_short_8: P6A5MZML

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/P6A5MZMLLSXYTC423C2MJ6KIMM \
  | 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: 7f81d6658b5caf898b9ad8b4c4f948633ac04978dce2ff0452258fdb7b6f32d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ac93d748f49ba939bde14cb8679e688d57f0ec6d90dc1b8b713899d55eb18e1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-05-28T07:22:30Z",
    "title_canon_sha256": "69e270f29b93f343247316b12dcd8e197dc2d97d7259ce256989528ddb76070d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6386",
    "kind": "arxiv",
    "version": 1
  }
}