Pith Number

pith:QIZQNWYV

pith:2007:QIZQNWYVYPDJYX3UOUWAUF3MWY

not attested not anchored not stored refs pending

The geometry of systems of third order differential equations induced by second order Lagrangians

Ioan Bucataru, Radu Miron

arxiv:0705.3689 v2 · 2007-05-25 · math.DG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QIZQNWYVYPDJYX3UOUWAUF3MWY}

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	2026-07-04T17:15:51.927088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823306db15c3c69c5f74752c0a176cb6042380155de67db5860d102ce6093892

Aliases

arxiv: 0705.3689 · arxiv_version: 0705.3689v2 · doi: 10.48550/arxiv.0705.3689 · pith_short_12: QIZQNWYVYPDJ · pith_short_16: QIZQNWYVYPDJYX3U · pith_short_8: QIZQNWYV

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/QIZQNWYVYPDJYX3UOUWAUF3MWY \
  | 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: 823306db15c3c69c5f74752c0a176cb6042380155de67db5860d102ce6093892

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9419275b05356e5c6888b2abbd129b6c0cf5cb4f22335fa7f4b5fa9b9d95e85e",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2007-05-25T04:46:00Z",
    "title_canon_sha256": "3d2665684d16afa2ea309534c4f547fc1900ad20af54b16c9f2dc4d18ec2c051"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.3689",
    "kind": "arxiv",
    "version": 2
  }
}