Pith Number

pith:B46WE7DJ

pith:2026:B46WE7DJFEMIEODQKJLKB3W77V

not attested not anchored not stored refs pending

CFDTwin: An open-source GUI and Python toolkit for POD-NN surrogate modeling of ANSYS Fluent simulations

Daniel Curl, Han Hu

arxiv:2605.27725 v1 · 2026-05-26 · physics.flu-dyn · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B46WE7DJFEMIEODQKJLKB3W77V}

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	2026-05-28T01:04:47.267749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f3d627c6929188238705256a0eedffd6c805c7a4a52c476b28f89fd19f952b8

Aliases

arxiv: 2605.27725 · arxiv_version: 2605.27725v1 · doi: 10.48550/arxiv.2605.27725 · pith_short_12: B46WE7DJFEMI · pith_short_16: B46WE7DJFEMIEODQ · pith_short_8: B46WE7DJ

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/B46WE7DJFEMIEODQKJLKB3W77V \
  | 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: 0f3d627c6929188238705256a0eedffd6c805c7a4a52c476b28f89fd19f952b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ca7bd2cc33a550c27c5ee019c58d0424bd8475011efeb194a0cb0b36a9aad58",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-26T22:00:49Z",
    "title_canon_sha256": "eaa49de98372bac2ed200e02f0c71aeed44632c4166ec5f06d35551b683f39c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27725",
    "kind": "arxiv",
    "version": 1
  }
}