Pith Number

pith:HEP7SKZK

pith:2018:HEP7SKZKODWKDEI6AVCAYVXFG2

not attested not anchored not stored refs pending

Lagrange stability for impulsive Duffing equations

Jianhua Sun, Lu Chen, Xiaoping Yuan

arxiv:1806.00577 v1 · 2018-06-02 · 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{HEP7SKZKODWKDEI6AVCAYVXFG2}

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	2026-05-18T00:14:19.027450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

391ff92b2a70eca1911e05440c56e536b926654cedac022e4edd3c4d14ebf667

Aliases

arxiv: 1806.00577 · arxiv_version: 1806.00577v1 · doi: 10.48550/arxiv.1806.00577 · pith_short_12: HEP7SKZKODWK · pith_short_16: HEP7SKZKODWKDEI6 · pith_short_8: HEP7SKZK

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/HEP7SKZKODWKDEI6AVCAYVXFG2 \
  | 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: 391ff92b2a70eca1911e05440c56e536b926654cedac022e4edd3c4d14ebf667

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3980eb830f87ee1fb24aa446528457d2420fe75344bfd7c3228ba96ffb61a0e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-06-02T03:20:18Z",
    "title_canon_sha256": "69c7e035de42d8258ed8833822152a40821d49677aab9782c48afd874eaef202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00577",
    "kind": "arxiv",
    "version": 1
  }
}