Pith Number

pith:6MDE2ZSK

pith:2018:6MDE2ZSKXTK2IRJMZ5QQLHHOSE

not attested not anchored not stored refs pending

Protection Placement for State Estimation Measurement Data Integrity

Kin Cheong Sou

arxiv:1811.05156 v1 · 2018-11-13 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6MDE2ZSKXTK2IRJMZ5QQLHHOSE}

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	2026-05-18T00:00:46.761186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3064d664abcd5a4452ccf61059cee9136441b7f86cb42f4678dfbbb7985d495

Aliases

arxiv: 1811.05156 · arxiv_version: 1811.05156v1 · doi: 10.48550/arxiv.1811.05156 · pith_short_12: 6MDE2ZSKXTK2 · pith_short_16: 6MDE2ZSKXTK2IRJM · pith_short_8: 6MDE2ZSK

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/6MDE2ZSKXTK2IRJMZ5QQLHHOSE \
  | 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: f3064d664abcd5a4452ccf61059cee9136441b7f86cb42f4678dfbbb7985d495

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b7a5c2971e7c04dc6153bfc3db28146b2a80fd4e3a9301bfa734fa203d75eb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-11-13T08:19:23Z",
    "title_canon_sha256": "147ef9d0dac21ca89d564c7e0ad74f3ac624fd3e62383139d7e98c6054084856"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05156",
    "kind": "arxiv",
    "version": 1
  }
}