Pith Number

pith:4OEMZD2B

pith:2019:4OEMZD2BCW5VJ6GAPMT7TIU767

not attested not anchored not stored refs pending

Noether theorem for action-dependent Lagrangian functions: conservation laws for non-conservative systems

G. S. F. Frederico, J. Paiva, M. J. Lazo

arxiv:1906.06182 v1 · 2019-06-13 · math-ph · math.MP · math.OC · 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{4OEMZD2BCW5VJ6GAPMT7TIU767}

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	2026-05-17T23:43:19.461056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e388cc8f4115bb54f8c07b27f9a29ff7dd6ff73f13caa6990f15ce2fa6093ef4

Aliases

arxiv: 1906.06182 · arxiv_version: 1906.06182v1 · doi: 10.48550/arxiv.1906.06182 · pith_short_12: 4OEMZD2BCW5V · pith_short_16: 4OEMZD2BCW5VJ6GA · pith_short_8: 4OEMZD2B

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/4OEMZD2BCW5VJ6GAPMT7TIU767 \
  | 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: e388cc8f4115bb54f8c07b27f9a29ff7dd6ff73f13caa6990f15ce2fa6093ef4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6993eb5d8b76ee527749537bc33766ea18dcd84d29030f137eb5cdbc69b8345",
    "cross_cats_sorted": [
      "math.MP",
      "math.OC",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-06-13T11:10:10Z",
    "title_canon_sha256": "baad4dad6cda13864c8d6d574c8ab3c11598bac3eb8e57f96486bb9e63c1ac0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06182",
    "kind": "arxiv",
    "version": 1
  }
}