Pith Number

pith:RSHETZU7

pith:2019:RSHETZU7GDXKOXCXMUWD5ADV2X

not attested not anchored not stored refs pending

A stabilized semi-implicit Fourier spectral method for nonlinear space-fractional reaction-diffusion equations

Fanhai Zeng, George Em Karniadakis, Hui Zhang, Xiaoyun Jiang

arxiv:1904.07651 v1 · 2019-04-16 · 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{RSHETZU7GDXKOXCXMUWD5ADV2X}

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	2026-06-04T20:14:25.590369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c8e49e69f30eea75c57652c3e8075d5f4262c1c7a226c4c6c6632cb456a70b3

Aliases

arxiv: 1904.07651 · arxiv_version: 1904.07651v1 · doi: 10.48550/arxiv.1904.07651 · pith_short_12: RSHETZU7GDXK · pith_short_16: RSHETZU7GDXKOXCX · pith_short_8: RSHETZU7

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/RSHETZU7GDXKOXCXMUWD5ADV2X \
  | 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: 8c8e49e69f30eea75c57652c3e8075d5f4262c1c7a226c4c6c6632cb456a70b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51facaae04704bed045a31f4416a69f85b55b4db9c29756f818ff44baedd1518",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-16T13:25:26Z",
    "title_canon_sha256": "8e06a949db47bb9d36b111f4cbbc64ee8bd8d66e1d5500e257e96c33fddb4c78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07651",
    "kind": "arxiv",
    "version": 1
  }
}