Pith Number

pith:W6QXT3QJ

pith:2010:W6QXT3QJS5M4VEYS5DZAXBXLDK

not attested not anchored not stored refs pending

Geometric Numerical Integration of Inequality Constrained, Nonsmooth Hamiltonian Systems

Danny M. Kaufman, Dinesh K. Pai

arxiv:1007.2233 v2 · 2010-07-14 · 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{W6QXT3QJS5M4VEYS5DZAXBXLDK}

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	2026-05-18T04:20:59.185263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7a179ee099759ca9312e8f20b86eb1a9b685050b4fc13c1defad5c5be32712b

Aliases

arxiv: 1007.2233 · arxiv_version: 1007.2233v2 · doi: 10.48550/arxiv.1007.2233 · pith_short_12: W6QXT3QJS5M4 · pith_short_16: W6QXT3QJS5M4VEYS · pith_short_8: W6QXT3QJ

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/W6QXT3QJS5M4VEYS5DZAXBXLDK \
  | 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: b7a179ee099759ca9312e8f20b86eb1a9b685050b4fc13c1defad5c5be32712b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ea96490fd36dc2052d028e6949f700729247bc4782132a2eb613e6102028209",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-07-14T01:07:16Z",
    "title_canon_sha256": "8f7a3f85835b4f092654299ac0bf6d7c2a4b8ac31ead054c92502269e0e9f84c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2233",
    "kind": "arxiv",
    "version": 2
  }
}