Pith Number

pith:3AJDXMGD

pith:2009:3AJDXMGDWA5OBTPBDVYQ5NO4KL

not attested not anchored not stored refs pending

Influence of flow confinement on the drag force on a static cylinder

Beno\^it Semin (FAST), Harold Auradou (FAST), Jean-Pierre Hulin (FAST)

arxiv:0904.4136 v1 · 2009-04-27 · 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{3AJDXMGDWA5OBTPBDVYQ5NO4KL}

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	2026-05-18T02:13:57.134081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8123bb0c3b03ae0cde11d710eb5dc52fd524cb8aa13f0a2daa52da44632f1f1

Aliases

arxiv: 0904.4136 · arxiv_version: 0904.4136v1 · doi: 10.48550/arxiv.0904.4136 · pith_short_12: 3AJDXMGDWA5O · pith_short_16: 3AJDXMGDWA5OBTPB · pith_short_8: 3AJDXMGD

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/3AJDXMGDWA5OBTPBDVYQ5NO4KL \
  | 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: d8123bb0c3b03ae0cde11d710eb5dc52fd524cb8aa13f0a2daa52da44632f1f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ad129d80cf6bed11bce6eb45ccab747bb8b9d3e24c8dbdb890e87a5cceb2d88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2009-04-27T11:53:46Z",
    "title_canon_sha256": "63092caf4f7c8696c73f2b4e9a755246ca66c0eef83eae6aea47879c8f8a816d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4136",
    "kind": "arxiv",
    "version": 1
  }
}