Pith Number

pith:ITC4GWDF

pith:2019:ITC4GWDF2TKQSFGZ6VV7GWZP6O

not attested not anchored not stored refs pending

Optimization-based control design techniques and tools

D. Noll, P. Apkarian

arxiv:1905.11511 v1 · 2019-05-27 · 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{ITC4GWDF2TKQSFGZ6VV7GWZP6O}

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	2026-05-17T23:44:53.199884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44c5c35865d4d50914d9f56bf35b2ff3bb951f8b4bf97feda376bb9fec84506e

Aliases

arxiv: 1905.11511 · arxiv_version: 1905.11511v1 · doi: 10.48550/arxiv.1905.11511 · pith_short_12: ITC4GWDF2TKQ · pith_short_16: ITC4GWDF2TKQSFGZ · pith_short_8: ITC4GWDF

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/ITC4GWDF2TKQSFGZ6VV7GWZP6O \
  | 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: 44c5c35865d4d50914d9f56bf35b2ff3bb951f8b4bf97feda376bb9fec84506e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1dee383b9f177e5a9e3c4bc0b89462d1316a57cf3b56726dfec0bfe5c4d74a7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-05-27T21:20:55Z",
    "title_canon_sha256": "d3587460280cf812ee48de0a77647ac58f6476a92dcaef883a88e37a81afcd54"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.11511",
    "kind": "arxiv",
    "version": 1
  }
}