Pith Number

pith:UMLJYFJ4

pith:2013:UMLJYFJ4UNRUHALMYAT2SEU3A5

not attested not anchored not stored refs pending

A Method for Geometry Optimization in a Simple Model of Two-Dimensional Heat Transfer

Bartosz Protas, Katsiaryna Niakhai, Xiaohui Peng

arxiv:1307.1248 v1 · 2013-07-04 · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMLJYFJ4UNRUHALMYAT2SEU3A5}

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	2026-05-18T03:19:14.304064Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3169c153ca36343816cc027a9129b07402f5d4a60697d5b105a9b77144c182e

Aliases

arxiv: 1307.1248 · arxiv_version: 1307.1248v1 · doi: 10.48550/arxiv.1307.1248 · pith_short_12: UMLJYFJ4UNRU · pith_short_16: UMLJYFJ4UNRUHALM · pith_short_8: UMLJYFJ4

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/UMLJYFJ4UNRUHALMYAT2SEU3A5 \
  | 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: a3169c153ca36343816cc027a9129b07402f5d4a60697d5b105a9b77144c182e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c8b64653476912f4bd689b3091097967ef46fee76452a2541d513ab0bb96370",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-07-04T09:19:19Z",
    "title_canon_sha256": "c751de0268edf9b56ea1a7836c1cb41ad09fa767accda0ef886605c42ccc6598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1248",
    "kind": "arxiv",
    "version": 1
  }
}