Pith Number

pith:GWSSPPO7

pith:2013:GWSSPPO7RJNAXW32MB6CIZWZ4W

not attested not anchored not stored refs pending

Projection methods and discrete gradient methods for preserving first integrals of ODEs

A. Stern, A. Zanna, D. I. McLaren, G. R. W. Quispel, R. A. Norton

arxiv:1302.2713 v1 · 2013-02-12 · math.NA · 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{GWSSPPO7RJNAXW32MB6CIZWZ4W}

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	2026-05-18T01:27:55.052543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35a527bddf8a5a0bdb7a607c2466d9e5aac9641d89016efd474b8bb7113cde25

Aliases

arxiv: 1302.2713 · arxiv_version: 1302.2713v1 · doi: 10.48550/arxiv.1302.2713 · pith_short_12: GWSSPPO7RJNA · pith_short_16: GWSSPPO7RJNAXW32 · pith_short_8: GWSSPPO7

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/GWSSPPO7RJNAXW32MB6CIZWZ4W \
  | 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: 35a527bddf8a5a0bdb7a607c2466d9e5aac9641d89016efd474b8bb7113cde25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "363730e7093ea01f13f1a0e9a8461467e570b6a2c4e6271eef85cf757ee70157",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-02-12T06:27:18Z",
    "title_canon_sha256": "0c06959e750551515f1dcf36016160b50a519edbed04aa074fab94a98a37f470"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2713",
    "kind": "arxiv",
    "version": 1
  }
}