Pith Number

pith:HKWX7LCC

pith:2018:HKWX7LCCEIFYEO3ZT37TEL5XXD

not attested not anchored not stored refs pending

A space-time pseudospectral discretization method for solving diffusion optimal control problems with two-sided fractional derivatives

Delfim F. M. Torres, Farid Bozorgnia, Hassan Khosravian-Arab, Mostafa Shamsi, Mushtaq Salh Ali

arxiv:1810.05876 v1 · 2018-10-13 · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HKWX7LCCEIFYEO3ZT37TEL5XXD}

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	2026-05-17T23:55:28.825927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aad7fac42220b823b799eff322fb7b8cbcdb060045887657265307368f7502f

Aliases

arxiv: 1810.05876 · arxiv_version: 1810.05876v1 · doi: 10.48550/arxiv.1810.05876 · pith_short_12: HKWX7LCCEIFY · pith_short_16: HKWX7LCCEIFYEO3Z · pith_short_8: HKWX7LCC

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/HKWX7LCCEIFYEO3ZT37TEL5XXD \
  | 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: 3aad7fac42220b823b799eff322fb7b8cbcdb060045887657265307368f7502f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b40e2058632de83edd981adc54b7e3f3658ec37dd40e5bd66524f9a206d164eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-13T15:25:38Z",
    "title_canon_sha256": "026bcd5e6af9499b1ea29c9c33323ad62f6bac51889ed0e066107dd2ef14f64c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05876",
    "kind": "arxiv",
    "version": 1
  }
}