Pith Number

pith:2CNYJBW7

pith:2013:2CNYJBW7ZK7WHS2G53RZUO5YBE

not attested not anchored not stored refs pending

WSLD operators: A class of fourth order difference approximations for space Riemann-Liouville derivative

Minghua Chen, Weihua Deng

arxiv:1304.7425 v1 · 2013-04-28 · 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{2CNYJBW7ZK7WHS2G53RZUO5YBE}

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	2026-05-18T02:49:46.068571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d09b8486dfcabf63cb46eee39a3bb8093ab803b04f9435d9a896f973d5559454

Aliases

arxiv: 1304.7425 · arxiv_version: 1304.7425v1 · doi: 10.48550/arxiv.1304.7425 · pith_short_12: 2CNYJBW7ZK7W · pith_short_16: 2CNYJBW7ZK7WHS2G · pith_short_8: 2CNYJBW7

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/2CNYJBW7ZK7WHS2G53RZUO5YBE \
  | 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: d09b8486dfcabf63cb46eee39a3bb8093ab803b04f9435d9a896f973d5559454

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67d9800ff777f485360985a67adb372d8010428d93241ab0c453b93e412dd517",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-28T04:05:58Z",
    "title_canon_sha256": "70385e0359f3c32d9d5d32a473b516ea9b11463e2564557be1e40e6b68dd0de2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7425",
    "kind": "arxiv",
    "version": 1
  }
}