Pith Number

pith:OJQAJU25

pith:2019:OJQAJU25XSVMJKZ2SF3YFYNIPS

not attested not anchored not stored refs pending

Differential evolution algorithm of solving an inverse problem for the spatial Solow mathematical model

Maktagali Bektemessov, Olga Krivorotko, Sergey Kabanikhin, Shuhua Zhang, Zholaman Bektemessov

arxiv:1904.10627 v1 · 2019-04-24 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJQAJU25XSVMJKZ2SF3YFYNIPS}

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	2026-05-17T23:47:53.201452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

726004d35dbcaac4ab3a917782e1a87c8d2e36bc75d9c0de23069f638e85c853

Aliases

arxiv: 1904.10627 · arxiv_version: 1904.10627v1 · doi: 10.48550/arxiv.1904.10627 · pith_short_12: OJQAJU25XSVM · pith_short_16: OJQAJU25XSVMJKZ2 · pith_short_8: OJQAJU25

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/OJQAJU25XSVMJKZ2SF3YFYNIPS \
  | 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: 726004d35dbcaac4ab3a917782e1a87c8d2e36bc75d9c0de23069f638e85c853

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ccc5571b811597fc403a72e82730dff17b7bd992e538736c2896c5543b3a7a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-04-24T03:31:11Z",
    "title_canon_sha256": "45de0d2f2e18d23229cf5eb39ebacd3ea13ed6bd7d4aca9bb6e7441cb171d557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.10627",
    "kind": "arxiv",
    "version": 1
  }
}