Pith Number

pith:VDOLFXDS

pith:2019:VDOLFXDSHZ4B6VCAA5UP2SHSCQ

not attested not anchored not stored refs pending

A Study of the Approximate Singular Lagrangian -- Conditional Noether Symmetries and First Integrals

Sameerah Jamal

arxiv:1901.05110 v1 · 2019-01-16 · 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{VDOLFXDSHZ4B6VCAA5UP2SHSCQ}

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	2026-05-17T23:56:11.902692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8dcb2dc723e781f54400768fd48f214077a5c5dc6f6959ca3948bc301bb0c04

Aliases

arxiv: 1901.05110 · arxiv_version: 1901.05110v1 · doi: 10.48550/arxiv.1901.05110 · pith_short_12: VDOLFXDSHZ4B · pith_short_16: VDOLFXDSHZ4B6VCA · pith_short_8: VDOLFXDS

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/VDOLFXDSHZ4B6VCAA5UP2SHSCQ \
  | 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: a8dcb2dc723e781f54400768fd48f214077a5c5dc6f6959ca3948bc301bb0c04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f66aa5e14ce85280044ebb2c00c6e1aaf62abdefffd9e9b3e5ce46663a698ff",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-01-16T02:08:00Z",
    "title_canon_sha256": "78dd51f6afc8cd0666cc00249c3b98637087c6c09bed5dcb1963e1e582132731"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05110",
    "kind": "arxiv",
    "version": 1
  }
}