Pith Number

pith:VY3JHA7Z

pith:2019:VY3JHA7ZXBB4ZAR3HRMDIIWFBP

not attested not anchored not stored refs pending

Swimming at Low Reynolds Number

Christophe Prud'Homme (IRMA), Laetitia Giraldi (McTAO), Luca Berti (IRMA)

arxiv:1911.12213 v1 · 2019-11-27 · math.AP · 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{VY3JHA7ZXBB4ZAR3HRMDIIWFBP}

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	2026-07-05T00:22:31.536932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae369383f9b843cc823b3c583422c50bdd60941c192162e3d42593696ee5973d

Aliases

arxiv: 1911.12213 · arxiv_version: 1911.12213v1 · doi: 10.48550/arxiv.1911.12213 · pith_short_12: VY3JHA7ZXBB4 · pith_short_16: VY3JHA7ZXBB4ZAR3 · pith_short_8: VY3JHA7Z

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/VY3JHA7ZXBB4ZAR3HRMDIIWFBP \
  | 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: ae369383f9b843cc823b3c583422c50bdd60941c192162e3d42593696ee5973d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b456d6d0d1ac34a7a59f730f87453dde85fa5785962b33b623b15ccc26393e85",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-11-27T15:09:53Z",
    "title_canon_sha256": "6c2a0d5c65f008d2f80b8a7ddc8d77dd3f82f7444db53e17384a0efabcfc8cb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.12213",
    "kind": "arxiv",
    "version": 1
  }
}