Pith Number

pith:45OBJNPF

pith:2015:45OBJNPFYHWPSMALORKGPKBQGK

not attested not anchored not stored refs pending

Aerodynamic ground effect in fruitfly sized insect takeoff

Dmitry Kolomenskiy, Hao Liu, Jean-Christophe Nave, Kai Schneider, Masateru Maeda, Thomas Engels

arxiv:1504.04484 v3 · 2015-04-17 · 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{45OBJNPFYHWPSMALORKGPKBQGK}

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	2026-05-18T01:18:09.895840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e75c14b5e5c1ecf9300b745467a8303280c9617066328a9eba3c681fbc095862

Aliases

arxiv: 1504.04484 · arxiv_version: 1504.04484v3 · doi: 10.48550/arxiv.1504.04484 · pith_short_12: 45OBJNPFYHWP · pith_short_16: 45OBJNPFYHWPSMAL · pith_short_8: 45OBJNPF

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/45OBJNPFYHWPSMALORKGPKBQGK \
  | 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: e75c14b5e5c1ecf9300b745467a8303280c9617066328a9eba3c681fbc095862

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a6befeed10557d603ba5dce5db157e68cf2e0aa59727436091df54088478eab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2015-04-17T11:44:38Z",
    "title_canon_sha256": "6c603558c732426f95e15a164cd4b7729f1fc49596435faa5559bb35ab2374b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04484",
    "kind": "arxiv",
    "version": 3
  }
}