Pith Number

pith:OSJYM4WD

pith:2018:OSJYM4WDCPMDG2M63JRCCT4C4Z

not attested not anchored not stored refs pending

An Action Principle for Action-dependent Lagrangians: toward an Action Principle to non-conservative systems

Gast\~ao S. F. Frederico, Jo\~ao T. S. Amaral, Juilson Paiva, Matheus J. Lazo

arxiv:1803.08308 v1 · 2018-03-22 · math-ph · math.MP · physics.class-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{OSJYM4WDCPMDG2M63JRCCT4C4Z}

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	2026-05-18T00:20:23.166002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74938672c313d833699eda62214f82e67465d71abb5c1ad4dade5112d1fea31d

Aliases

arxiv: 1803.08308 · arxiv_version: 1803.08308v1 · doi: 10.48550/arxiv.1803.08308 · pith_short_12: OSJYM4WDCPMD · pith_short_16: OSJYM4WDCPMDG2M6 · pith_short_8: OSJYM4WD

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/OSJYM4WDCPMDG2M63JRCCT4C4Z \
  | 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: 74938672c313d833699eda62214f82e67465d71abb5c1ad4dade5112d1fea31d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "717b533b64f130bfc15a1be8c76d4cc6626fc984a7cd973eb354e283fb7a6e89",
    "cross_cats_sorted": [
      "math.MP",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-03-22T11:12:11Z",
    "title_canon_sha256": "5b0817c1931beded121c2d4c39e83675157878963998464fe0c82a1714d3f759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08308",
    "kind": "arxiv",
    "version": 1
  }
}