Pith Number

pith:4HS2Y54A

pith:2009:4HS2Y54ASVXB2UNK4D6WWBQOSX

not attested not anchored not stored refs pending

Wave-vortex interaction

Claudio Falc\'on, St\'ephan Fauve

arxiv:0904.3139 v1 · 2009-04-21 · physics.flu-dyn · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HS2Y54ASVXB2UNK4D6WWBQOSX}

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	2026-05-18T02:13:58.703284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1e5ac7780956e1d51aae0fd6b060e95fbe85fd211fc1e9427c4ae523e6e3ec9

Aliases

arxiv: 0904.3139 · arxiv_version: 0904.3139v1 · doi: 10.48550/arxiv.0904.3139 · pith_short_12: 4HS2Y54ASVXB · pith_short_16: 4HS2Y54ASVXB2UNK · pith_short_8: 4HS2Y54A

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/4HS2Y54ASVXB2UNK4D6WWBQOSX \
  | 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: e1e5ac7780956e1d51aae0fd6b060e95fbe85fd211fc1e9427c4ae523e6e3ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c1213def72a58cb072ab82d3fa23684f13f6b801f61ca90f9633f97a053448",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2009-04-21T00:03:13Z",
    "title_canon_sha256": "4223eadde68e06b755aef332faeb059230c1df3056044fdcf512388f566363d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3139",
    "kind": "arxiv",
    "version": 1
  }
}