Pith Number

pith:R25ODQRP

pith:2016:R25ODQRPLHGXF7APPI7GLMWVF6

not attested not anchored not stored refs pending

Simple analytic equation for airfoil shape description

David Ziemkiewicz

arxiv:1701.00817 v1 · 2016-12-30 · 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{R25ODQRPLHGXF7APPI7GLMWVF6}

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	2026-05-18T00:53:22.178901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ebae1c22f59cd72fc0f7a3e65b2d52fa758e5ad7f82fc4f87eee8fbf94cefe1

Aliases

arxiv: 1701.00817 · arxiv_version: 1701.00817v1 · doi: 10.48550/arxiv.1701.00817 · pith_short_12: R25ODQRPLHGX · pith_short_16: R25ODQRPLHGXF7AP · pith_short_8: R25ODQRP

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/R25ODQRPLHGXF7APPI7GLMWVF6 \
  | 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: 8ebae1c22f59cd72fc0f7a3e65b2d52fa758e5ad7f82fc4f87eee8fbf94cefe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b99ed7e4a0c3f4ee0e1b8d1e734b8a91280f52b1ff5314d0687318022d1220de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2016-12-30T11:05:16Z",
    "title_canon_sha256": "3686f3fb41a36d26b1c8092cd54c6d86eb41f3fddf18714657c63057d4de6f01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00817",
    "kind": "arxiv",
    "version": 1
  }
}