Pith Number

pith:ZLDV74UT

pith:2021:ZLDV74UT2TQJQBYBS4X3MZ5XTJ

not attested not anchored not stored refs pending

Optimal ventilation rate for effective displacement ventilation

Chong Shen Ng, Detlef Lohse, Kai Leong Chong, Roberto Verzicco, Rui Yang

arxiv:2104.03363 v1 · 2021-04-07 · physics.flu-dyn · physics.comp-ph · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZLDV74UT2TQJQBYBS4X3MZ5XTJ}

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	2026-07-05T02:30:16.641123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cac75ff293d4e0980701972fb667b79a42d0e8e90169372c32d37a6eacb72396

Aliases

arxiv: 2104.03363 · arxiv_version: 2104.03363v1 · doi: 10.48550/arxiv.2104.03363 · pith_short_12: ZLDV74UT2TQJ · pith_short_16: ZLDV74UT2TQJQBYB · pith_short_8: ZLDV74UT

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/ZLDV74UT2TQJQBYBS4X3MZ5XTJ \
  | 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: cac75ff293d4e0980701972fb667b79a42d0e8e90169372c32d37a6eacb72396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24f29cca59cb37e549cc639a39c36f3e5dcdb062c5ce68ae6f7e1baf59802fc9",
    "cross_cats_sorted": [
      "physics.comp-ph",
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2021-04-07T19:28:58Z",
    "title_canon_sha256": "4158ee0b42576f290b37b1ac9b312ddf74777dc9e2f53ab129b2579050cb31f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03363",
    "kind": "arxiv",
    "version": 1
  }
}