Pith Number

pith:Q254JCQQ

pith:2025:Q254JCQQ2MTBV44Z2SSGKQVFGO

not attested not anchored not stored refs pending

Exponential Time Differencing Runge-Kutta Discontinuous Galerkin (ETD-RKDG) Methods for Nonlinear Degenerate Parabolic Equations

Yong-Tao Zhang, Ziyao Xu

arxiv:2506.04416 v1 · 2025-06-04 · 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{Q254JCQQ2MTBV44Z2SSGKQVFGO}

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	2026-07-05T11:16:13.974821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86bbc48a10d3261af399d4a46542a5338a091f8150c4be0415c00e4a90e9f1a8

Aliases

arxiv: 2506.04416 · arxiv_version: 2506.04416v1 · doi: 10.48550/arxiv.2506.04416 · pith_short_12: Q254JCQQ2MTB · pith_short_16: Q254JCQQ2MTBV44Z · pith_short_8: Q254JCQQ

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/Q254JCQQ2MTBV44Z2SSGKQVFGO \
  | 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: 86bbc48a10d3261af399d4a46542a5338a091f8150c4be0415c00e4a90e9f1a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "899f0a9f40e6651145a98c6c3657ba222318f66f11e5ca01c6bff3343912af8b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-06-04T19:52:43Z",
    "title_canon_sha256": "dfe99a0f054774b0e5585ce73e28740c218471e87238cb66ea4b860b16e54ecc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04416",
    "kind": "arxiv",
    "version": 1
  }
}