Pith Number

pith:3O32ON4U

pith:2025:3O32ON4UTQXUOTNS5TEPVJGV5W

not attested not anchored not stored refs pending

Learning the Optimal Hydrodynamic Closure

Candi Zheng, Florian Kogelbauer, Ilya Karlin

arxiv:2501.13938 v3 · 2025-01-16 · physics.flu-dyn · 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{3O32ON4UTQXUOTNS5TEPVJGV5W}

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.

Cited by

1 paper in Pith

On the Relation of Exact Hydrodynamics to the Chapman-Enskog Series

Receipt and verification

First computed	2026-07-05T12:06:05.011213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbb7a737949c2f474db2ecc8faa4d5edbfa1abc10978d2cf04644c8c9013471d

Aliases

arxiv: 2501.13938 · arxiv_version: 2501.13938v3 · doi: 10.48550/arxiv.2501.13938 · pith_short_12: 3O32ON4UTQXU · pith_short_16: 3O32ON4UTQXUOTNS · pith_short_8: 3O32ON4U

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/3O32ON4UTQXUOTNS5TEPVJGV5W \
  | 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: dbb7a737949c2f474db2ecc8faa4d5edbfa1abc10978d2cf04644c8c9013471d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cf3805cb6759bf6bb24a006311d8a54f98309c6b9333e89919111981b3efacc",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-01-16T22:18:40Z",
    "title_canon_sha256": "663ac6d59f3c81a7520bbe97e4376f453397f6c24d23cbf172deb6f255b784d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.13938",
    "kind": "arxiv",
    "version": 3
  }
}