Pith Number

pith:OXRQJ75K

pith:2012:OXRQJ75K5HBR6XNXS3RVQ3OKDI

not attested not anchored not stored refs pending

Complexity Reduction for Parameter-Dependent Linear Systems

Farhad Farokhi, Henrik Sandberg, Karl H. Johansson

arxiv:1209.5077 v1 · 2012-09-23 · cs.SY · 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{OXRQJ75K5HBR6XNXS3RVQ3OKDI}

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	2026-05-18T03:44:59.324266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75e304ffaae9c31f5db796e3586dca1a24bd9d9b3809f095f5cea93f8867110b

Aliases

arxiv: 1209.5077 · arxiv_version: 1209.5077v1 · doi: 10.48550/arxiv.1209.5077 · pith_short_12: OXRQJ75K5HBR · pith_short_16: OXRQJ75K5HBR6XNX · pith_short_8: OXRQJ75K

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/OXRQJ75K5HBR6XNXS3RVQ3OKDI \
  | 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: 75e304ffaae9c31f5db796e3586dca1a24bd9d9b3809f095f5cea93f8867110b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6fc2cecf34ca973de710366d8b0522a682df20590a39f182fc41d04a0fe85bd",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2012-09-23T15:32:09Z",
    "title_canon_sha256": "c8202a2951487bd12ce85f22987b58d2c5874797d719c126878aa0cb2f82fd58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5077",
    "kind": "arxiv",
    "version": 1
  }
}