Pith Number

pith:7RVLMRRO

pith:2013:7RVLMRROQ2MJFQNRCDGWRINRN7

not attested not anchored not stored refs pending

A numerical scheme to solve fractional optimal control problems

Delfim F. M. Torres, Ricardo Almeida, Shakoor Pooseh

arxiv:1306.0203 v1 · 2013-06-02 · 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{7RVLMRROQ2MJFQNRCDGWRINRN7}

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	2026-05-18T03:21:55.813555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc6ab6462e869892c1b110cd68a1b16fce248ce811e3d0197352ababfe6c3a22

Aliases

arxiv: 1306.0203 · arxiv_version: 1306.0203v1 · doi: 10.48550/arxiv.1306.0203 · pith_short_12: 7RVLMRROQ2MJ · pith_short_16: 7RVLMRROQ2MJFQNR · pith_short_8: 7RVLMRRO

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/7RVLMRROQ2MJFQNRCDGWRINRN7 \
  | 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: fc6ab6462e869892c1b110cd68a1b16fce248ce811e3d0197352ababfe6c3a22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c7db2907dfa587b2ed0f7b8cd4690eca863aab2ba7206e2763b1cee12fb24ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-06-02T12:39:45Z",
    "title_canon_sha256": "9747346a46dc4ec0303e627c690b23ca14b46f132711ecdce2c1a12bfba8e9b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0203",
    "kind": "arxiv",
    "version": 1
  }
}