Pith Number

pith:PVLG2QWJ

pith:2013:PVLG2QWJD6NLRGYVWVBVGOSU5M

not attested not anchored not stored refs pending

Casimir invariants and the Jacobi identity in Dirac's theory of constrained Hamiltonian systems

Cristel Chandre (CPT)

arxiv:1303.1989 v1 · 2013-03-08 · math-ph · math.MP · nlin.CD · physics.plasm-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PVLG2QWJD6NLRGYVWVBVGOSU5M}

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	2026-05-18T03:15:32.284753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d566d42c91f9ab89b15b543533a54eb3afb46117cfaa235879c9050239b6ded

Aliases

arxiv: 1303.1989 · arxiv_version: 1303.1989v1 · doi: 10.48550/arxiv.1303.1989 · pith_short_12: PVLG2QWJD6NL · pith_short_16: PVLG2QWJD6NLRGYV · pith_short_8: PVLG2QWJ

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/PVLG2QWJD6NLRGYVWVBVGOSU5M \
  | 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: 7d566d42c91f9ab89b15b543533a54eb3afb46117cfaa235879c9050239b6ded

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfd1c52dcb83894cdf0f9024a2714ec1a8b0706ab7c4209ac50b28ebcf9df13f",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.CD",
      "physics.plasm-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-03-08T13:43:18Z",
    "title_canon_sha256": "df5e6273403335199c53845b1c3f6855457b54a099bc0988d6c13591dcaa52e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1989",
    "kind": "arxiv",
    "version": 1
  }
}