Pith Number

pith:ZIVQJOLV

pith:2019:ZIVQJOLVYJ3UCBRYSAG7AZC5HC

not attested not anchored not stored refs pending

Fast Fourier-like Mapped Chebyshev Spectral-Galerkin Methods for PDEs with Integral Fractional Laplacian in Unbounded Domains

Changtao Sheng, Huifang Yuan, Jie Shen, Li-Lian Wang, Tao Tang

arxiv:1908.10029 v1 · 2019-08-27 · 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{ZIVQJOLVYJ3UCBRYSAG7AZC5HC}

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	2026-07-04T23:59:53.096831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca2b04b975c277410638900df0645d38908fd0d918b011d086d0b6822698bb5a

Aliases

arxiv: 1908.10029 · arxiv_version: 1908.10029v1 · doi: 10.48550/arxiv.1908.10029 · pith_short_12: ZIVQJOLVYJ3U · pith_short_16: ZIVQJOLVYJ3UCBRY · pith_short_8: ZIVQJOLV

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/ZIVQJOLVYJ3UCBRYSAG7AZC5HC \
  | 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: ca2b04b975c277410638900df0645d38908fd0d918b011d086d0b6822698bb5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "367cb248b19f9a134586173cf7475985c1423abfd2e3a9eb5e2834e65adb5817",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-27T04:48:17Z",
    "title_canon_sha256": "aadcb9800a83663b821b26bc7881cdb897ecc889de7960ad094e9ad6da3e975d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.10029",
    "kind": "arxiv",
    "version": 1
  }
}