Pith Number

pith:QAF23X2Y

pith:2019:QAF23X2YBIAUHXONTF7A6ZGYF5

not attested not anchored not stored refs pending

On the stability of laminar flows between plates

Bernard Helffer, Yaniv Almog

arxiv:1908.06328 v2 · 2019-08-17 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QAF23X2YBIAUHXONTF7A6ZGYF5}

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	2026-07-05T00:45:08.635062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

800baddf580a0143ddcd997e0f64d82f460f6fe39f0c09f09f65535230b9ab1b

Aliases

arxiv: 1908.06328 · arxiv_version: 1908.06328v2 · doi: 10.48550/arxiv.1908.06328 · pith_short_12: QAF23X2YBIAU · pith_short_16: QAF23X2YBIAUHXON · pith_short_8: QAF23X2Y

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/QAF23X2YBIAUHXONTF7A6ZGYF5 \
  | 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: 800baddf580a0143ddcd997e0f64d82f460f6fe39f0c09f09f65535230b9ab1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5378782595d6a7f04fc78e1b95bc85f519f10c74297f56904b9e2236629396b5",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-08-17T18:27:01Z",
    "title_canon_sha256": "4b05c73def9abf2fba883e09e2395ca675006bdb6ec3ed2d08771b7caff56a77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06328",
    "kind": "arxiv",
    "version": 2
  }
}