Pith Number

pith:5546YYXA

pith:2017:5546YYXABCORIO7UGH3NNSH4GZ

not attested not anchored not stored refs pending

Superconvergence Points For The Spectral Interpolation Of Riesz Fractional Derivatives

Beichuan Deng, Xuan Zhao, Zhimin Zhang

arxiv:1709.10223 v1 · 2017-09-29 · 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{5546YYXABCORIO7UGH3NNSH4GZ}

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	2026-05-18T00:34:03.911043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef79ec62e0089d143bf431f6d6c8fc364500d8c19f23e20465244d59e7b68dd0

Aliases

arxiv: 1709.10223 · arxiv_version: 1709.10223v1 · doi: 10.48550/arxiv.1709.10223 · pith_short_12: 5546YYXABCOR · pith_short_16: 5546YYXABCORIO7U · pith_short_8: 5546YYXA

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/5546YYXABCORIO7UGH3NNSH4GZ \
  | 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: ef79ec62e0089d143bf431f6d6c8fc364500d8c19f23e20465244d59e7b68dd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b5ad7d5add7e57b4e4e3c0a7ad97d9178b7492211a37f15750628ff7271283a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-29T03:02:37Z",
    "title_canon_sha256": "4b2f678dedc146863581e85fdd9bbf5f70fd30d8454e41d7455a97090d2ce420"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.10223",
    "kind": "arxiv",
    "version": 1
  }
}