Pith Number

pith:2TMZQJVV

pith:2025:2TMZQJVVBUED3Q2JGBNL2RWF5K

not attested not anchored not stored refs pending

Topology-Preserving Coupling of Compressible Fluids and Thin Deformables

David Levin, Eitan Grinspun, Jonathan Panuelos

arxiv:2507.18460 v1 · 2025-05-29 · physics.comp-ph · cs.GR · 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{2TMZQJVVBUED3Q2JGBNL2RWF5K}

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	2026-07-05T11:42:48.337380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4d99826b50d083dc349305abd46c5ea8f00a15bf5a7a7868b890f7bec9d4d20

Aliases

arxiv: 2507.18460 · arxiv_version: 2507.18460v1 · doi: 10.48550/arxiv.2507.18460 · pith_short_12: 2TMZQJVVBUED · pith_short_16: 2TMZQJVVBUED3Q2J · pith_short_8: 2TMZQJVV

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/2TMZQJVVBUED3Q2JGBNL2RWF5K \
  | 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: d4d99826b50d083dc349305abd46c5ea8f00a15bf5a7a7868b890f7bec9d4d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03eea6077331e12897e915bb8de4cd2f5d481b5a466305f8194fd6c10bd903aa",
    "cross_cats_sorted": [
      "cs.GR",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2025-05-29T23:04:53Z",
    "title_canon_sha256": "e2c9bdfca8b8c7cb58ed8671e61de4a6c9d0820e1a890dff1d928ee54fd53623"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18460",
    "kind": "arxiv",
    "version": 1
  }
}