Pith Number

pith:V63Q5JOM

pith:2026:V63Q5JOMOQUJN7OLPPHLCFYJRI

not attested not anchored not stored refs pending

Optimal airfoils in the intermediate Reynolds number range

Dmitry Kolomenskiy, Gleb Zhdanko

arxiv:2605.19468 v1 · 2026-05-19 · 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{V63Q5JOMOQUJN7OLPPHLCFYJRI}

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	2026-05-20T01:05:47.311911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afb70ea5cc742896fdcb7bceb117098a12ee2f63ea77e12289df7812668ea689

Aliases

arxiv: 2605.19468 · arxiv_version: 2605.19468v1 · doi: 10.48550/arxiv.2605.19468 · pith_short_12: V63Q5JOMOQUJ · pith_short_16: V63Q5JOMOQUJN7OL · pith_short_8: V63Q5JOM

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/V63Q5JOMOQUJN7OLPPHLCFYJRI \
  | 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: afb70ea5cc742896fdcb7bceb117098a12ee2f63ea77e12289df7812668ea689

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aebd7bbe4f063851d517dfac65c88610f13ebe582bf0394745d220830f621709",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-19T07:20:56Z",
    "title_canon_sha256": "82bb03d9e8730285b994007fff2c34e8e2607321fd6b22de94627976d8edcd7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19468",
    "kind": "arxiv",
    "version": 1
  }
}