Pith Number

pith:NCIKBPIL

pith:2017:NCIKBPILONYRNKTZUYMIHGR3IS

not attested not anchored not stored refs pending

Two classes of quadratic vector fields for which the Kahan discretization is integrable

Brynjulf Owren, David I. McLaren, Elena Celledoni, G.R.W. Quispel, Robert I. McLachlan

arxiv:1702.00280 v1 · 2017-01-31 · 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{NCIKBPILONYRNKTZUYMIHGR3IS}

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	2026-05-18T00:51:34.747714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6890a0bd0b737116aa79a618839a3b449d6826172b21c85f5b3bbef0153425ae

Aliases

arxiv: 1702.00280 · arxiv_version: 1702.00280v1 · doi: 10.48550/arxiv.1702.00280 · pith_short_12: NCIKBPILONYR · pith_short_16: NCIKBPILONYRNKTZ · pith_short_8: NCIKBPIL

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/NCIKBPILONYRNKTZUYMIHGR3IS \
  | 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: 6890a0bd0b737116aa79a618839a3b449d6826172b21c85f5b3bbef0153425ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05737959d530f6811acbbecb87c8ddff58672e311481ff5965a8eca0428ca2ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-01-31T01:53:52Z",
    "title_canon_sha256": "1539260c359d447be0be75097392d2bfaa48767eedeefa1f4aae27a9ba965911"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00280",
    "kind": "arxiv",
    "version": 1
  }
}