Pith Number

pith:DYZMZPZR

pith:2018:DYZMZPZRQI6XCUOOOSFJPKIVD7

not attested not anchored not stored refs pending

Generalized Lagrangian Jacobi-Gauss-Radau collocation method for solving a nonlinear 2-D optimal control problem with the classical diffusion equation

Kourosh Parand, Mehdi Delkhosh, Mohammad M. Moayeri, Sobhan Latifi

arxiv:1802.04779 v1 · 2018-02-13 · 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{DYZMZPZRQI6XCUOOOSFJPKIVD7}

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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	2026-05-18T00:23:41.381324Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e32ccbf31823d7151ce748a97a9151fce292dc71a420ae22712bf8e40613eef

Aliases

arxiv: 1802.04779 · arxiv_version: 1802.04779v1 · doi: 10.48550/arxiv.1802.04779 · pith_short_12: DYZMZPZRQI6X · pith_short_16: DYZMZPZRQI6XCUOO · pith_short_8: DYZMZPZR

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/DYZMZPZRQI6XCUOOOSFJPKIVD7 \
  | 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: 1e32ccbf31823d7151ce748a97a9151fce292dc71a420ae22712bf8e40613eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d8d0149797c73de8b2399d4b6f92a10ccb8124300f99f0dacf6b8a950b1e6d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-13T18:18:00Z",
    "title_canon_sha256": "d49416840c8d49153ce7844110ec8679dde8bdc2ca72e77e3fbad5014bc4d301"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.04779",
    "kind": "arxiv",
    "version": 1
  }
}