Pith Number

pith:FR4DIT7Z

pith:2013:FR4DIT7ZVDWLOHC3C5LVDTQ7E5

not attested not anchored not stored refs pending

Optimal Control with Noisy Time

Andrew Lamperski, Noah J. Cowan

arxiv:1401.0202 v1 · 2013-12-31 · math.OC · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FR4DIT7ZVDWLOHC3C5LVDTQ7E5}

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	2026-05-18T03:03:30.767175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c78344ff9a8ecb71c5b175751ce1f2741851749d337f8618fdcdf68979b0c02

Aliases

arxiv: 1401.0202 · arxiv_version: 1401.0202v1 · doi: 10.48550/arxiv.1401.0202 · pith_short_12: FR4DIT7ZVDWL · pith_short_16: FR4DIT7ZVDWLOHC3 · pith_short_8: FR4DIT7Z

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/FR4DIT7ZVDWLOHC3C5LVDTQ7E5 \
  | 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: 2c78344ff9a8ecb71c5b175751ce1f2741851749d337f8618fdcdf68979b0c02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b4363076e3a3680376c3caa8304620a7da8c89fc2296e4d36de971e9fb356d9",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-12-31T18:18:17Z",
    "title_canon_sha256": "9d50d214fb26d4aa99adb9f69d494988fcc64eaaf1f58a8e4dbc613bada39f77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0202",
    "kind": "arxiv",
    "version": 1
  }
}