Pith Number

pith:6ZE3V3LU

pith:2019:6ZE3V3LU6SGD22FSJZBMIR3GE2

not attested not anchored not stored refs pending

An Unknown Input Multi-Observer Approach for Estimation and Control under Adversarial Attacks

Carlos Murguia, Dragan Nesic, Margreta Kuijper, Tianci Yang

arxiv:1904.04237 v1 · 2019-04-06 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ZE3V3LU6SGD22FSJZBMIR3GE2}

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	2026-05-17T23:48:59.495916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f649baed74f48c3d68b24e42c4476626815ed87ac22c34b5d008f4d3a021ceb6

Aliases

arxiv: 1904.04237 · arxiv_version: 1904.04237v1 · doi: 10.48550/arxiv.1904.04237 · pith_short_12: 6ZE3V3LU6SGD · pith_short_16: 6ZE3V3LU6SGD22FS · pith_short_8: 6ZE3V3LU

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/6ZE3V3LU6SGD22FSJZBMIR3GE2 \
  | 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: f649baed74f48c3d68b24e42c4476626815ed87ac22c34b5d008f4d3a021ceb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f77c77be9c16461613832fc4a27f9d388de7aae03cfa668cea0a834f8a6ba22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2019-04-06T07:12:05Z",
    "title_canon_sha256": "c0eb52b959b7aa7e7ac244fdb89ae7a50f9465b0b4e3811cdea3fbdce9692e5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04237",
    "kind": "arxiv",
    "version": 1
  }
}