Pith Number

pith:NWKPFKWW

pith:2015:NWKPFKWWGZLZDSF5YWQ5EY3QVA

not attested not anchored not stored refs pending

Periodic and Chaotic Flapping of Insectile Wings

Eva Kanso, Yangyang Huang

arxiv:1504.06644 v1 · 2015-04-24 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWKPFKWWGZLZDSF5YWQ5EY3QVA}

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	2026-05-18T01:10:54.362581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d94f2aad6365791c8bdc5a1d26370a82c626fb6783dcd8529d7a0c381134422

Aliases

arxiv: 1504.06644 · arxiv_version: 1504.06644v1 · doi: 10.48550/arxiv.1504.06644 · pith_short_12: NWKPFKWWGZLZ · pith_short_16: NWKPFKWWGZLZDSF5 · pith_short_8: NWKPFKWW

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/NWKPFKWWGZLZDSF5YWQ5EY3QVA \
  | 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: 6d94f2aad6365791c8bdc5a1d26370a82c626fb6783dcd8529d7a0c381134422

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8cc3caa457a4db57db1ff2a9d457ab9fc028e1d497474629f1d221d85a363d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2015-04-24T21:05:42Z",
    "title_canon_sha256": "649f1195251750b397b1f0e6a9817e269c38ed5e8f88ec96bbd0b369d0d96a45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06644",
    "kind": "arxiv",
    "version": 1
  }
}