Pith Number

pith:L37P4S2Y

pith:2025:L37P4S2Y2GL2EKQWD6Y4YXPYQW

not attested not anchored not stored refs pending

Fourth- and Higher-Order Semi-Lagrangian Finite Volume Methods for the Two-dimensional Advection Equation on Arbitrarily Complex Domains

Kaiyi Liang, Qinghai Zhang, Yuke Zhu, Yunxia Sun, Zhi Lin

arxiv:2506.15142 v1 · 2025-06-18 · 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{L37P4S2Y2GL2EKQWD6Y4YXPYQW}

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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	2026-07-05T11:23:37.961149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5efefe4b58d197a22a161fb1cc5df8859a552a123563f4650d0f8397d4fb54d6

Aliases

arxiv: 2506.15142 · arxiv_version: 2506.15142v1 · doi: 10.48550/arxiv.2506.15142 · pith_short_12: L37P4S2Y2GL2 · pith_short_16: L37P4S2Y2GL2EKQW · pith_short_8: L37P4S2Y

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/L37P4S2Y2GL2EKQWD6Y4YXPYQW \
  | 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: 5efefe4b58d197a22a161fb1cc5df8859a552a123563f4650d0f8397d4fb54d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dbafc3b4ee9a8c88b622396f7b37782d0f5949f5216ead1f308e6743778b450",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-06-18T04:50:47Z",
    "title_canon_sha256": "14851277074a5e440623bbd978bbdbc64fb6dd2213359386be845c6ab2667588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.15142",
    "kind": "arxiv",
    "version": 1
  }
}