Pith Number

pith:ZBR53WZY

pith:2004:ZBR53WZYVHMSKGR365TKWDP7DF

not attested not anchored not stored refs pending

The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft

B. Chapron, F. Soulat, G. Ruffini, M. Caparrini, O. Germain, P. Silvestrin

arxiv:physics/0407037 v2 · 2004-07-08 · physics.ao-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBR53WZYVHMSKGR365TKWDP7DF}

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	2026-05-18T01:38:08.385047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c863dddb38a9d9251a3bf766ab0dff1971e3501ce91932a0e1035706149f0d4a

Aliases

arxiv: physics/0407037 · arxiv_version: physics/0407037v2 · doi: 10.48550/arxiv.physics/0407037 · pith_short_12: ZBR53WZYVHMS · pith_short_16: ZBR53WZYVHMSKGR3 · pith_short_8: ZBR53WZY

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/ZBR53WZYVHMSKGR365TKWDP7DF \
  | 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: c863dddb38a9d9251a3bf766ab0dff1971e3501ce91932a0e1035706149f0d4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2fb1fd935c2915599dbe5ff9296f2b577c5658678e8afe2d84989b13a9a50f0",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2004-07-08T11:41:43Z",
    "title_canon_sha256": "1e4ddc9bbb7b2eb1bd540bc0f7b7ab84b9df770097bb26050664f0efe993b89a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0407037",
    "kind": "arxiv",
    "version": 2
  }
}