Pith Number

pith:BVCBBFJM

pith:2025:BVCBBFJMSNQFBVGLALAZOOHYLT

not attested not anchored not stored refs pending

A Simple and Robust Weak Galerkin Method for the Brinkman Equations on Non-Convex Polytopal Meshes

Chunmei Wang, Shangyou Zhang

arxiv:2507.18896 v1 · 2025-07-25 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVCBBFJMSNQFBVGLALAZOOHYLT}

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	2026-07-05T11:43:15.726945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d4410952c936050d4cb02c19738f85cd50319c97ca6402b92a6910567fc06a3

Aliases

arxiv: 2507.18896 · arxiv_version: 2507.18896v1 · doi: 10.48550/arxiv.2507.18896 · pith_short_12: BVCBBFJMSNQF · pith_short_16: BVCBBFJMSNQFBVGL · pith_short_8: BVCBBFJM

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/BVCBBFJMSNQFBVGLALAZOOHYLT \
  | 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: 0d4410952c936050d4cb02c19738f85cd50319c97ca6402b92a6910567fc06a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cfe63835b23187abb6c112ef86493797eb91b022acd9f2f9565dd4483ec3d99",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-07-25T02:36:33Z",
    "title_canon_sha256": "07916519902e539caf5e1f744ff4f899d76dd5626f5c89d804a21425af4a3d70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.18896",
    "kind": "arxiv",
    "version": 1
  }
}