Pith Number

pith:2KTFIN2Z

pith:2025:2KTFIN2ZZYMSFJERBSHJCW5TSV

not attested not anchored not stored refs pending

Separation control applied to the turbulent flow around a NACA4412 wing section

Carlos Guardiola, Fermin Mallor, Raffaello Mariani, Ricardo Vinuesa, Yuning Wang

arxiv:2502.07910 v3 · 2025-02-11 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KTFIN2ZZYMSFJERBSHJCW5TSV}

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	2026-07-05T10:53:39.367932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a6543759ce1922a4910c8e915bb3954707873a9fa4f7fc4b49802b3ed2b762

Aliases

arxiv: 2502.07910 · arxiv_version: 2502.07910v3 · doi: 10.48550/arxiv.2502.07910 · pith_short_12: 2KTFIN2ZZYMS · pith_short_16: 2KTFIN2ZZYMSFJER · pith_short_8: 2KTFIN2Z

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/2KTFIN2ZZYMSFJERBSHJCW5TSV \
  | 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: d2a6543759ce1922a4910c8e915bb3954707873a9fa4f7fc4b49802b3ed2b762

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43db6e7b4ef7dc44cd6f2ba463b84fd34124c10d7caca82f70f909c00ef2e392",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-02-11T19:31:06Z",
    "title_canon_sha256": "6701bae20743f4131e0ef594ba4ebf40c3e33d37bb135282f781278a73fd181e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.07910",
    "kind": "arxiv",
    "version": 3
  }
}