Pith Number

pith:XZ4XKKLT

pith:2025:XZ4XKKLTE2O2XAHNU7ATFR2EIQ

not attested not anchored not stored refs pending

Quantifying data needs in surrogate modeling for flow fields in two-dimensional stirred tanks with physics-informed neural networks

Eric von Lieres, Marek Behr, Veronika Tr\'avn\'ikov\'a

arxiv:2507.11640 v2 · 2025-07-15 · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZ4XKKLTE2O2XAHNU7ATFR2EIQ}

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	2026-07-05T11:39:14.102341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be79752973269dab80eda7c132c744440cd406ddbba9064b0a14c442bc06a997

Aliases

arxiv: 2507.11640 · arxiv_version: 2507.11640v2 · doi: 10.48550/arxiv.2507.11640 · pith_short_12: XZ4XKKLTE2O2 · pith_short_16: XZ4XKKLTE2O2XAHN · pith_short_8: XZ4XKKLT

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/XZ4XKKLTE2O2XAHNU7ATFR2EIQ \
  | 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: be79752973269dab80eda7c132c744440cd406ddbba9064b0a14c442bc06a997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5638d72f900b9bd1b8511f48067c4f1128d030f551bc3d1f441b81d2822dc82b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2025-07-15T18:24:40Z",
    "title_canon_sha256": "90896e9251f2eee1de4ab8c6854958cac8957f7c134237806def725fdfed93b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.11640",
    "kind": "arxiv",
    "version": 2
  }
}