Pith Number

pith:HA7PEARN

pith:2017:HA7PEARN7GQAJFC7EH5K7YNREY

not attested not anchored not stored refs pending

Unconditionally Positive and Conservative Third Order Modified Patankar-Runge-Kutta Discretizations of Production-Destruction Systems

Andreas Meister, Stefan Kopecz

arxiv:1703.05052 v1 · 2017-03-15 · 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{HA7PEARN7GQAJFC7EH5K7YNREY}

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	2026-05-18T00:48:38.528577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

383ef2022df9a004945f21faafe1b126153ad2cb3e1e0c95e62be155e12d1c1c

Aliases

arxiv: 1703.05052 · arxiv_version: 1703.05052v1 · doi: 10.48550/arxiv.1703.05052 · pith_short_12: HA7PEARN7GQA · pith_short_16: HA7PEARN7GQAJFC7 · pith_short_8: HA7PEARN

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/HA7PEARN7GQAJFC7EH5K7YNREY \
  | 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: 383ef2022df9a004945f21faafe1b126153ad2cb3e1e0c95e62be155e12d1c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76aca2535c9513e762dfc39e051532f59f40583011e3be39cb407fa7036112c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-15T09:53:13Z",
    "title_canon_sha256": "b6b0d3046ae29058fb448eea55736ec4e684e2a914073f70984f98dc6e905b32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05052",
    "kind": "arxiv",
    "version": 1
  }
}