Pith Number

pith:ZT7M4BNN

pith:2012:ZT7M4BNNUDOPBPLIITC2BIUJMP

not attested not anchored not stored refs pending

Derivation of the Maximum a Posterori Estimate for Discrete Time Descriptor Systems

Ali Al-Matouq

arxiv:1207.3136 v5 · 2012-07-13 · cs.SY · math.DS · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZT7M4BNNUDOPBPLIITC2BIUJMP}

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	2026-05-18T02:56:19.389008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccfece05ada0dcf0bd6844c5a0a28963d7bdec95808813ba287bc92bc3a4fad4

Aliases

arxiv: 1207.3136 · arxiv_version: 1207.3136v5 · doi: 10.48550/arxiv.1207.3136 · pith_short_12: ZT7M4BNNUDOP · pith_short_16: ZT7M4BNNUDOPBPLI · pith_short_8: ZT7M4BNN

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/ZT7M4BNNUDOPBPLIITC2BIUJMP \
  | 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: ccfece05ada0dcf0bd6844c5a0a28963d7bdec95808813ba287bc92bc3a4fad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a10e2a798491360c29f197bf3eaeff7a6b3f108b8365c515e9ee4ae8005d41a",
    "cross_cats_sorted": [
      "math.DS",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2012-07-13T03:12:30Z",
    "title_canon_sha256": "cf3b339646c1b1bde1f1c4adcf63bf72648f8b3f01178bb94fe147e2af66d003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3136",
    "kind": "arxiv",
    "version": 5
  }
}