Pith Number

pith:7TGO44R6

pith:2019:7TGO44R66DIJYVK5SUAI5W573W

not attested not anchored not stored refs pending

On the formation of three-dimensional flows over finite-aspect-ratio wings under tip effects

Kai Zhang, Kunihiko Taira, Michael Amitay, Shelby Hayostek, Vassilios Theofilis, Wei He

arxiv:1909.04729 v1 · 2019-09-10 · 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{7TGO44R66DIJYVK5SUAI5W573W}

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	2026-07-05T01:12:23.495226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcccee723ef0d09c555d95008edbbfdd8254fe4bfa1aa77c34a163b735397127

Aliases

arxiv: 1909.04729 · arxiv_version: 1909.04729v1 · doi: 10.48550/arxiv.1909.04729 · pith_short_12: 7TGO44R66DIJ · pith_short_16: 7TGO44R66DIJYVK5 · pith_short_8: 7TGO44R6

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/7TGO44R66DIJYVK5SUAI5W573W \
  | 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: fcccee723ef0d09c555d95008edbbfdd8254fe4bfa1aa77c34a163b735397127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfd63fdef40666d09bdab1413b527caa464f1b8098b105682f5ae27191c99cc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2019-09-10T20:18:35Z",
    "title_canon_sha256": "d57e8947a8730c066b01b4341668dd57c0ab52731a019a0acc32e569ab30b709"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04729",
    "kind": "arxiv",
    "version": 1
  }
}