Pith Number

pith:47QDKL4L

pith:2012:47QDKL4LZPSOUDMQ3B2Y5F7I25

not attested not anchored not stored refs pending

Natural ventilation - A new method based on the Walton model applied to cross-ventilated buildings having two large external openings

Alain Bastide (PIMENT), Francis Allard (LEPTIAB), Harry Boyer (PIMENT)

arxiv:1212.5257 v1 · 2012-12-18 · 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{47QDKL4LZPSOUDMQ3B2Y5F7I25}

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	2026-05-18T03:38:02.362374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7e0352f8bcbe4ea0d90d8758e97e8d750e6120f34aee0a59b3bf564e34ae266

Aliases

arxiv: 1212.5257 · arxiv_version: 1212.5257v1 · doi: 10.48550/arxiv.1212.5257 · pith_short_12: 47QDKL4LZPSO · pith_short_16: 47QDKL4LZPSOUDMQ · pith_short_8: 47QDKL4L

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/47QDKL4LZPSOUDMQ3B2Y5F7I25 \
  | 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: e7e0352f8bcbe4ea0d90d8758e97e8d750e6120f34aee0a59b3bf564e34ae266

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6468c003c73af3f9a790e43c7b1f73a6b6d0945994040f11b7b58b64aeec9918",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2012-12-18T12:52:58Z",
    "title_canon_sha256": "df43ee841fe1aaddbdec1b38201da0cda7f58650a968df93871e8ed55f8fc756"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5257",
    "kind": "arxiv",
    "version": 1
  }
}