Pith Number

pith:YPA3W3B6

pith:2014:YPA3W3B6BCSWUOELZVXSBQBACR

not attested not anchored not stored refs pending

Optimization of flagellar swimming by a model sperm

B. U. Felderhof

arxiv:1412.3937 v2 · 2014-12-12 · physics.flu-dyn · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YPA3W3B6BCSWUOELZVXSBQBACR}

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	2026-05-18T02:17:00.790826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3c1bb6c3e08a56a388bcd6f20c020146d450fbe3cff48ecd949b59f9ca8d796

Aliases

arxiv: 1412.3937 · arxiv_version: 1412.3937v2 · doi: 10.48550/arxiv.1412.3937 · pith_short_12: YPA3W3B6BCSW · pith_short_16: YPA3W3B6BCSWUOEL · pith_short_8: YPA3W3B6

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/YPA3W3B6BCSWUOELZVXSBQBACR \
  | 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: c3c1bb6c3e08a56a388bcd6f20c020146d450fbe3cff48ecd949b59f9ca8d796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6211082526d30cd7273db3257db94cae649a9701fd7e448120cd42d4d12564af",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2014-12-12T10:17:50Z",
    "title_canon_sha256": "f4dae6c4de9740974d7fef8e2bd22d7b73e1fdf00737e1eb74e5ddb5a932392c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.3937",
    "kind": "arxiv",
    "version": 2
  }
}