Pith Number

pith:CQFGO7GE

pith:2013:CQFGO7GEVNCFFUO7F5C5CS6AOY

not attested not anchored not stored refs pending

Air flow in a collapsing cavity

Detlef Lohse, Devaraj van der Meer, Ivo R. Peters, Stephan Gekle

arxiv:1302.4476 v1 · 2013-02-18 · 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{CQFGO7GEVNCFFUO7F5C5CS6AOY}

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	2026-05-18T01:51:35.478360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

140a677cc4ab4452d1df2f45d14bc076335ce203f5ef981844c49ab2e12ce42c

Aliases

arxiv: 1302.4476 · arxiv_version: 1302.4476v1 · doi: 10.48550/arxiv.1302.4476 · pith_short_12: CQFGO7GEVNCF · pith_short_16: CQFGO7GEVNCFFUO7 · pith_short_8: CQFGO7GE

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/CQFGO7GEVNCFFUO7F5C5CS6AOY \
  | 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: 140a677cc4ab4452d1df2f45d14bc076335ce203f5ef981844c49ab2e12ce42c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "709f76407bfb261b75e8c7488af19d0977f56f1029bbeabbedd6322ad70f1c98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2013-02-18T22:44:10Z",
    "title_canon_sha256": "ef528a95026f9a135d0d3311104cfdffb196b45692c2509fc1d4c08f99944977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.4476",
    "kind": "arxiv",
    "version": 1
  }
}