Pith Number

pith:6JIJHHUM

pith:2004:6JIJHHUMS537CZSFQJKRXTRKOF

not attested not anchored not stored refs pending

The Eddy Experiment: accurate GNSS-R ocean altimetry from low altitude aircraft

F. Soulat, G. Ruffini, M. Caparrini, M. Martin-Neira (ESA/ESTEC), O. Germain (Starlab)

arxiv:physics/0406025 v1 · 2004-06-07 · 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{6JIJHHUMS537CZSFQJKRXTRKOF}

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	2026-05-18T01:38:08.412917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f250939e8c9777f1664582551bce2a7167d3a37eb0ceba47c2207e62308cf995

Aliases

arxiv: physics/0406025 · arxiv_version: physics/0406025v1 · doi: 10.48550/arxiv.physics/0406025 · pith_short_12: 6JIJHHUMS537 · pith_short_16: 6JIJHHUMS537CZSF · pith_short_8: 6JIJHHUM

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/6JIJHHUMS537CZSFQJKRXTRKOF \
  | 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: f250939e8c9777f1664582551bce2a7167d3a37eb0ceba47c2207e62308cf995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b9d14cf5708c02a40633f28abcb3ecdc4b6a6eaaedb67d285e7d8b3c95450c9",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2004-06-07T13:29:59Z",
    "title_canon_sha256": "d1dfbdf6c3358f8f164bfa161894794ba83257217a3f94029de127df30ac47fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0406025",
    "kind": "arxiv",
    "version": 1
  }
}