Pith Number

pith:7OG46ORW

pith:2017:7OG46ORWQNXA52XO5M4I3DMOKE

not attested not anchored not stored refs pending

On the triangular canonical form for uniformly observable controlled systems

Hassan Hammouri (LAGEP), Laurent Praly (CAS), Pauline Bernard (CAS), Vincent Andrieu (LAGEP)

arxiv:1711.10237 v1 · 2017-11-28 · math.OC · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OG46ORWQNXA52XO5M4I3DMOKE}

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	2026-05-17T23:47:36.352646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb8dcf3a36836e0eeaeeeb388d8d8e510b0b4ca3e33a8729641a159227eb6e39

Aliases

arxiv: 1711.10237 · arxiv_version: 1711.10237v1 · doi: 10.48550/arxiv.1711.10237 · pith_short_12: 7OG46ORWQNXA · pith_short_16: 7OG46ORWQNXA52XO · pith_short_8: 7OG46ORW

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/7OG46ORWQNXA52XO5M4I3DMOKE \
  | 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: fb8dcf3a36836e0eeaeeeb388d8d8e510b0b4ca3e33a8729641a159227eb6e39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dbf5cff946a2cd1485cb25fbedbb05f1a58ed457c89e5a9a86bdbff32ab7b51",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-11-28T11:48:42Z",
    "title_canon_sha256": "6a663b7924fc1eafe5c0634d0e6ec8c3cb4f2fe12a951fb8973f7625f3300a21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.10237",
    "kind": "arxiv",
    "version": 1
  }
}