Pith Number

pith:2WAY4NFU

pith:2013:2WAY4NFU6CUDC7CZDCOLWCS5DZ

not attested not anchored not stored refs pending

Event-Triggered State Observers for Sparse Sensor Noise/Attacks

Paulo Tabuada, Yasser Shoukry

arxiv:1309.3511 v3 · 2013-09-13 · math.OC · cs.CR · cs.IT · cs.SY · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2WAY4NFU6CUDC7CZDCOLWCS5DZ}

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	2026-05-18T02:42:28.751178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5818e34b4f0a8317c59189cbb0a5d1e5b17bf9e8a6206f43a4116ea3e223e8f

Aliases

arxiv: 1309.3511 · arxiv_version: 1309.3511v3 · doi: 10.48550/arxiv.1309.3511 · pith_short_12: 2WAY4NFU6CUD · pith_short_16: 2WAY4NFU6CUDC7CZ · pith_short_8: 2WAY4NFU

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/2WAY4NFU6CUDC7CZDCOLWCS5DZ \
  | 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: d5818e34b4f0a8317c59189cbb0a5d1e5b17bf9e8a6206f43a4116ea3e223e8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0ed162d5e3a124c21565dcc0cdef73d910eb0ae9956632eb14800420ea85651",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.IT",
      "cs.SY",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-09-13T17:05:57Z",
    "title_canon_sha256": "6513b1603295432398de1c8205218c2f81e994b7ca9cd97fc5d0f6f756f88479"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3511",
    "kind": "arxiv",
    "version": 3
  }
}