Pith Number

pith:CC4GLA5E

pith:2023:CC4GLA5E2ZWCRHHCWMVIT3SOGV

not attested not anchored not stored refs pending

On the equivalence of model-based and data-driven approaches to the design of unknown-input observers

Giorgia Disar\`o, Maria Elena Valcher

arxiv:2311.00673 v2 · 2023-11-01 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CC4GLA5E2ZWCRHHCWMVIT3SOGV}

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	2026-07-05T09:55:31.777160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10b86583a4d66c289ce2b32a89ee4e355a38d266b87d42ca0dafa5d48a44c101

Aliases

arxiv: 2311.00673 · arxiv_version: 2311.00673v2 · doi: 10.48550/arxiv.2311.00673 · pith_short_12: CC4GLA5E2ZWC · pith_short_16: CC4GLA5E2ZWCRHHC · pith_short_8: CC4GLA5E

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/CC4GLA5E2ZWCRHHCWMVIT3SOGV \
  | 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: 10b86583a4d66c289ce2b32a89ee4e355a38d266b87d42ca0dafa5d48a44c101

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0aa2d344d6c419c59840b95726d3ead67b51f6efca7a805df2f97ab9a1fa335",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2023-11-01T17:26:36Z",
    "title_canon_sha256": "f9d7757abfec87839a4d4c8c25a39173cd93374f912c7437eeafa49df63d796f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2311.00673",
    "kind": "arxiv",
    "version": 2
  }
}