Pith Number

pith:DZPE4EPW

pith:2011:DZPE4EPWPGIXHTCQBSA7QHLIY5

not attested not anchored not stored refs pending

Nothing is as Practical as a Good Theory: Model-Free Control Rien de plus utile qu'une bonne th\'eorie: la commande sans mod\`ele

C\'edric Join (INRIA Saclay - Ile de France, CRAN), ECS-Lab), Michel Fliess (LIX), Samer Riachy (INRIA Saclay - Ile de France

arxiv:1103.5897 v2 · 2011-03-30 · 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{DZPE4EPWPGIXHTCQBSA7QHLIY5}

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	2026-05-18T04:25:25.361859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e5e4e11f6799173cc500c81f81d68c770eda2a2b3665955a384f4c2d5cd50e8

Aliases

arxiv: 1103.5897 · arxiv_version: 1103.5897v2 · doi: 10.48550/arxiv.1103.5897 · pith_short_12: DZPE4EPWPGIX · pith_short_16: DZPE4EPWPGIXHTCQ · pith_short_8: DZPE4EPW

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/DZPE4EPWPGIXHTCQBSA7QHLIY5 \
  | 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: 1e5e4e11f6799173cc500c81f81d68c770eda2a2b3665955a384f4c2d5cd50e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "339a2dec0872dc5d40ad7d05f5d23cace71af6494dc49cf74020de7fe61c9262",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2011-03-30T12:08:15Z",
    "title_canon_sha256": "90edc98ce25878e67d55762627ae280299ccc9d18e48992f2c25840ca94852e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5897",
    "kind": "arxiv",
    "version": 2
  }
}