Pith Number

pith:JORF5YXH

pith:2013:JORF5YXHGL2I4IR6MWPAOWBSNX

not attested not anchored not stored refs pending

Strong Structural Controllability and Observability of Linear Time-Varying Systems

Christoph Hartung, Ferdinand Svaricek, Gunther Reissig

arxiv:1306.1486 v2 · 2013-06-06 · math.OC · cs.SY · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JORF5YXHGL2I4IR6MWPAOWBSNX}

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	2026-05-18T00:53:40.912276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ba25ee2e732f48e223e659e0758326de7b4e54894c167bdfce867e110b7da6f

Aliases

arxiv: 1306.1486 · arxiv_version: 1306.1486v2 · doi: 10.48550/arxiv.1306.1486 · pith_short_12: JORF5YXHGL2I · pith_short_16: JORF5YXHGL2I4IR6 · pith_short_8: JORF5YXH

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/JORF5YXHGL2I4IR6MWPAOWBSNX \
  | 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: 4ba25ee2e732f48e223e659e0758326de7b4e54894c167bdfce867e110b7da6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6b30c6fdd904a9c96f042d4f71b1353eeb6b2ceff5ce3d16e681c8f23fa45ae",
    "cross_cats_sorted": [
      "cs.SY",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-06-06T17:42:36Z",
    "title_canon_sha256": "d43fc8660ac2054fc021e6165dfe4201afdca1dfff2475145f30d4cde405b252"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1486",
    "kind": "arxiv",
    "version": 2
  }
}