Pith Number

pith:434H7NVF

pith:2017:434H7NVFM2ZT3QZJ7BQ5HUCB7K

not attested not anchored not stored refs pending

Lie group classification of first-order delay ordinary differential equations

Pavel Winternitz, Roman Kozlov, Sergey V. Meleshko, Vladimir A. Dorodnitsyn

arxiv:1712.02581 v1 · 2017-12-07 · 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{434H7NVFM2ZT3QZJ7BQ5HUCB7K}

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	2026-05-18T00:16:29.961510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6f87fb6a566b33dc329f861d3d041fa8f154d2daa3702142f204eed5a4c26c0

Aliases

arxiv: 1712.02581 · arxiv_version: 1712.02581v1 · doi: 10.48550/arxiv.1712.02581 · pith_short_12: 434H7NVFM2ZT · pith_short_16: 434H7NVFM2ZT3QZJ · pith_short_8: 434H7NVF

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/434H7NVFM2ZT3QZJ7BQ5HUCB7K \
  | 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: e6f87fb6a566b33dc329f861d3d041fa8f154d2daa3702142f204eed5a4c26c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5db154e352a9bce6f0c65e14bae15f61a46e3804270904578addef356daec23",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-12-07T12:17:54Z",
    "title_canon_sha256": "4589b0f379f39e79bfb650f0c72bda4d4e5867723f292c9e9522ac118c510f39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02581",
    "kind": "arxiv",
    "version": 1
  }
}