Pith Number

pith:QJEQRVZX

pith:2019:QJEQRVZXO6NQ2LO462KIL54GEZ

not attested not anchored not stored refs pending

An Optimal Graph-Search Method for Secure State Estimation

Michael M. Zavlanos, Miroslav Pajic, Xusheng Luo

arxiv:1903.10620 v4 · 2019-03-25 · math.OC · cs.CR · cs.SY · eess.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{QJEQRVZXO6NQ2LO462KIL54GEZ}

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	2026-06-04T20:14:17.591394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

824908d737779b0d2ddcf69485f78626420632d94f55c011ee18c6ccd4a10437

Aliases

arxiv: 1903.10620 · arxiv_version: 1903.10620v4 · doi: 10.48550/arxiv.1903.10620 · pith_short_12: QJEQRVZXO6NQ · pith_short_16: QJEQRVZXO6NQ2LO4 · pith_short_8: QJEQRVZX

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/QJEQRVZXO6NQ2LO462KIL54GEZ \
  | 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: 824908d737779b0d2ddcf69485f78626420632d94f55c011ee18c6ccd4a10437

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7310c9f46ad41ea27538abad0747c3de6c9d018a58e0dd4a4c0bf3e69c75e101",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-03-25T22:24:37Z",
    "title_canon_sha256": "8879289853b8d3d0c59c3b8b2f70ede2af62dca4e2e239b1eb309c18b6f9537f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10620",
    "kind": "arxiv",
    "version": 4
  }
}