Pith. sign in
Pith Number

pith:RCJ66W7I

pith:2020:RCJ66W7IX6LRYDIOOMYVQX3CVZ
not attested not anchored not stored refs pending

Structure of Constrained Systems in Lagrangian Formalism and Degree of Freedom Count

Ahmad Shirzad, Mohammad Javad Heidari

arxiv:2003.13269 v1 · 2020-03-30 · physics.class-ph · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{RCJ66W7IX6LRYDIOOMYVQX3CVZ}

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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-05T00:51:13.949891Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8893ef5be8bf971c0d0e7331585f62ae76c1e418737aecef9a8026d2ebf65090

Aliases

arxiv: 2003.13269 · arxiv_version: 2003.13269v1 · doi: 10.48550/arxiv.2003.13269 · pith_short_12: RCJ66W7IX6LR · pith_short_16: RCJ66W7IX6LRYDIO · pith_short_8: RCJ66W7I
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/RCJ66W7IX6LRYDIOOMYVQX3CVZ \
  | 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: 8893ef5be8bf971c0d0e7331585f62ae76c1e418737aecef9a8026d2ebf65090
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "8a59487d06f2e5d115f9b760f4d5a961b53760a1a953eab513c4cf5df43c3cc3",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2020-03-30T08:37:14Z",
    "title_canon_sha256": "87f021c7153cebddb3ba07df5acde4cee00c40666df0d0a878d53be8bda1e88a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.13269",
    "kind": "arxiv",
    "version": 1
  }
}