Pith Number

pith:6NA4O24X

pith:2018:6NA4O24XTEN7AOYHW3SFWID7C7

not attested not anchored not stored refs pending

Wellposedness of the two-sided variable coefficient Caputo flux fractional diffusion equation and error estimate of its spectral approximation

Hong Wang, V.J. Ervin, Xiangcheng Zheng

arxiv:1811.00582 v1 · 2018-11-01 · 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{6NA4O24XTEN7AOYHW3SFWID7C7}

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	2026-05-18T00:01:42.792427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f341c76b97991bf03b07b6e45b207f17e6a0a3469266fbfdaadafc97c33ec2b4

Aliases

arxiv: 1811.00582 · arxiv_version: 1811.00582v1 · doi: 10.48550/arxiv.1811.00582 · pith_short_12: 6NA4O24XTEN7 · pith_short_16: 6NA4O24XTEN7AOYH · pith_short_8: 6NA4O24X

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/6NA4O24XTEN7AOYHW3SFWID7C7 \
  | 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: f341c76b97991bf03b07b6e45b207f17e6a0a3469266fbfdaadafc97c33ec2b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ab1f17da55e598dfec8226b9710a8f03481ac314c3e3340f3686a045eaae869",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-01T18:39:57Z",
    "title_canon_sha256": "ee1d926dd7f45ea7c30b0c456b58e47d1b08f9e69a42026628b11bb92e827701"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00582",
    "kind": "arxiv",
    "version": 1
  }
}