Pith Number

pith:3T2UECXX

pith:2019:3T2UECXXBSJBIAEWFUG7QXJPYL

not attested not anchored not stored refs pending

A numerical approach for solving fractional optimal control problems using modified hat functions

Delfim F. M. Torres, Pedro M. Lima, Somayeh Nemati

arxiv:1905.06839 v1 · 2019-05-16 · math.OC · math.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3T2UECXXBSJBIAEWFUG7QXJPYL}

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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	2026-05-17T23:44:53.806709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcf5420af70c921400962d0df85d2fc2e2958e886a3c07b367a794256c5a93d8

Aliases

arxiv: 1905.06839 · arxiv_version: 1905.06839v1 · doi: 10.48550/arxiv.1905.06839 · pith_short_12: 3T2UECXXBSJB · pith_short_16: 3T2UECXXBSJBIAEW · pith_short_8: 3T2UECXX

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/3T2UECXXBSJBIAEWFUG7QXJPYL \
  | 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: dcf5420af70c921400962d0df85d2fc2e2958e886a3c07b367a794256c5a93d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa97ade8139acd14dc5aa3e17bfbdd5eb0ddb4db7f4ff10c269bc204aff34674",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-16T15:27:47Z",
    "title_canon_sha256": "1ad009219a5995ece75b02c9d76f38d8c8351a1418acee5e702608a607974bf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06839",
    "kind": "arxiv",
    "version": 1
  }
}