Pith Number

pith:QPQKUEP6

pith:2013:QPQKUEP6DJVQJRAIVOBGIPXXO4

not attested not anchored not stored refs pending

Optimal Taylor-Couette flow: Radius ratio dependence

Chao Sun, Dennis P. M. van Gils, Detlef Lohse, Roberto Verzicco, Rodolfo Ostilla Monico, Sander G. Huisman, Siegfried Grossmann, Tim J. G. Jannink

arxiv:1304.6331 v2 · 2013-04-23 · 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{QPQKUEP6DJVQJRAIVOBGIPXXO4}

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	2026-05-18T00:46:04.813618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e0aa11fe1a6b04c408ab82643ef777220f78698732392326a6a775456ec4aa

Aliases

arxiv: 1304.6331 · arxiv_version: 1304.6331v2 · doi: 10.48550/arxiv.1304.6331 · pith_short_12: QPQKUEP6DJVQ · pith_short_16: QPQKUEP6DJVQJRAI · pith_short_8: QPQKUEP6

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/QPQKUEP6DJVQJRAIVOBGIPXXO4 \
  | 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: 83e0aa11fe1a6b04c408ab82643ef777220f78698732392326a6a775456ec4aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad4de49ac44b459d07c5b1903faf153545a1d9c8a248983c1d6e50b22cda555a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2013-04-23T15:42:53Z",
    "title_canon_sha256": "e15c7ae7c0660ae2a8c970a3311eb01fc49b4944465eb8008c7bd70b7727fd76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6331",
    "kind": "arxiv",
    "version": 2
  }
}