Pith Number

pith:3XBYE7C7

pith:2025:3XBYE7C7HVWB4UP5ZUYBNO67L5

not attested not anchored not stored refs pending

Nonlinear Diffusion and Decay of an Expanding Turbulent Blob

Minhui Zhu, Nigel Goldenfeld, Takumi Matsuzawa, William T.M. Irvine

arxiv:2505.22737 v3 · 2025-05-28 · 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{3XBYE7C7HVWB4UP5ZUYBNO67L5}

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	2026-07-05T11:28:16.951478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddc3827c5f3d6c1e51fdcd3016bbdf5f7248fed56e229f93f0fc4735d0b4bd4a

Aliases

arxiv: 2505.22737 · arxiv_version: 2505.22737v3 · doi: 10.48550/arxiv.2505.22737 · pith_short_12: 3XBYE7C7HVWB · pith_short_16: 3XBYE7C7HVWB4UP5 · pith_short_8: 3XBYE7C7

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/3XBYE7C7HVWB4UP5ZUYBNO67L5 \
  | 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: ddc3827c5f3d6c1e51fdcd3016bbdf5f7248fed56e229f93f0fc4735d0b4bd4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "973d583667edb121a490aea772e06424def6ff79c57247732f3f0d97358a5d19",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-05-28T18:01:35Z",
    "title_canon_sha256": "bc8e646518e9733406d87459a5389d8e71cfefbbce0312cd44cab395bf012417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22737",
    "kind": "arxiv",
    "version": 3
  }
}