Pith Number

pith:4KZDPFRZ

pith:2014:4KZDPFRZZ2PENRPDSFOMYZVNOG

not attested not anchored not stored refs pending

The Optimal Swimming Sheet

Eric Lauga, Thomas D. Montenegro-Johnson

arxiv:1406.1070 v1 · 2014-06-04 · physics.flu-dyn · physics.bio-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{4KZDPFRZZ2PENRPDSFOMYZVNOG}

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	2026-05-18T02:50:30.412429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2b2379639ce9e46c5e3915ccc66ad71aec302849f58fa9a7406697957268647

Aliases

arxiv: 1406.1070 · arxiv_version: 1406.1070v1 · doi: 10.48550/arxiv.1406.1070 · pith_short_12: 4KZDPFRZZ2PE · pith_short_16: 4KZDPFRZZ2PENRPD · pith_short_8: 4KZDPFRZ

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/4KZDPFRZZ2PENRPDSFOMYZVNOG \
  | 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: e2b2379639ce9e46c5e3915ccc66ad71aec302849f58fa9a7406697957268647

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61920f48c763878d1129122f69cd2853bae12ea0f713faf0bbe6071bea88bfbb",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2014-06-04T15:08:08Z",
    "title_canon_sha256": "81e543a86afbed64d7f7b6c23dee195a3599576df94d7bed2caf2e878b0bbf95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.1070",
    "kind": "arxiv",
    "version": 1
  }
}