Pith Number

pith:4GID3XGR

pith:2018:4GID3XGRESJNGWDC5RMM6RI7JS

not attested not anchored not stored refs pending

Differential-Algebraic Equations and Beyond: From Smooth to Nonsmooth Constrained Dynamical Systems

Bernd Simeon, Jan Kleinert

arxiv:1811.07658 v1 · 2018-11-19 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GID3XGRESJNGWDC5RMM6RI7JS}

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	2026-05-18T00:00:23.843700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1903ddcd12492d35862ec58cf451f4caa23b85df0f485b7141653244f4cef53

Aliases

arxiv: 1811.07658 · arxiv_version: 1811.07658v1 · doi: 10.48550/arxiv.1811.07658 · pith_short_12: 4GID3XGRESJN · pith_short_16: 4GID3XGRESJNGWDC · pith_short_8: 4GID3XGR

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/4GID3XGRESJNGWDC5RMM6RI7JS \
  | 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: e1903ddcd12492d35862ec58cf451f4caa23b85df0f485b7141653244f4cef53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d49f3ef67776e7d7009300df44d53a1551aec8010f500f0b55d154650e95f616",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-19T12:54:54Z",
    "title_canon_sha256": "c4259c8c2258742cb1de0ded0c902b8449dca040a9e7f108d61880c481c2440d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07658",
    "kind": "arxiv",
    "version": 1
  }
}