Pith Number

pith:T7QBOYIO

pith:2013:T7QBOYIOHD2KCURSWJIQLSPAKL

not attested not anchored not stored refs pending

A second-order numerical method for two-dimensional two-sided space fractional convection diffusion equation

Minghua Chen, Weihua Deng

arxiv:1304.3788 v1 · 2013-04-13 · math.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{T7QBOYIOHD2KCURSWJIQLSPAKL}

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	2026-05-18T02:51:42.423396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fe017610e38f4a15232b25105c9e052d6943b9b1f59a3e0c7f983f3044a65a3

Aliases

arxiv: 1304.3788 · arxiv_version: 1304.3788v1 · doi: 10.48550/arxiv.1304.3788 · pith_short_12: T7QBOYIOHD2K · pith_short_16: T7QBOYIOHD2KCURS · pith_short_8: T7QBOYIO

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/T7QBOYIOHD2KCURSWJIQLSPAKL \
  | 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: 9fe017610e38f4a15232b25105c9e052d6943b9b1f59a3e0c7f983f3044a65a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7ac1d91bc312f9dbcd9f5ebc204dfccf03b1ca57f3674d29353e018c9442458",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-13T08:18:22Z",
    "title_canon_sha256": "0e187ae80cb9ebf219495c6f713d0689818813ed35240260ce81fe9afc37ecfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3788",
    "kind": "arxiv",
    "version": 1
  }
}