Pith Number

pith:QPJNOPFN

pith:2026:QPJNOPFNYFL3POFD2HLDF6RAVG

not attested not anchored not stored refs pending

Mean-Flow Adjoint Sensitivity Analysis of Unsteady Flow Around Porous Cylinders Using a Homogenized Lattice Boltzmann Method

Adrian Kummerl\"ander, Fedor Bukreev, Johannes L. Grafen, Mathias J. Krause, Shota Ito

arxiv:2606.31707 v1 · 2026-06-30 · 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{QPJNOPFNYFL3POFD2HLDF6RAVG}

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	2026-07-01T01:18:12.372338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d2d73cadc157b7b8a3d1d632fa20a99d742060a13e32aaab11912a6e180a8c

Aliases

arxiv: 2606.31707 · arxiv_version: 2606.31707v1 · doi: 10.48550/arxiv.2606.31707 · pith_short_12: QPJNOPFNYFL3 · pith_short_16: QPJNOPFNYFL3POFD · pith_short_8: QPJNOPFN

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/QPJNOPFNYFL3POFD2HLDF6RAVG \
  | 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: 83d2d73cadc157b7b8a3d1d632fa20a99d742060a13e32aaab11912a6e180a8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "973f5f0cfb7a3d7eb4bdc03fb3a7e71838a75c344be74d8656e45368db7e9b87",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-06-30T14:15:05Z",
    "title_canon_sha256": "6354f55ee86c7a09eba8f401f9f1fa183b8a4e8b1dea7a583f299bd21500d650"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31707",
    "kind": "arxiv",
    "version": 1
  }
}