Pith Number

pith:IGFUZWSR

pith:2012:IGFUZWSR7S34ZNKVDHTGUJ2SIN

not attested not anchored not stored refs pending

Toeplitz Matrix Based Sparse Error Correction in System Identification: Outliers and Random Noises

Er-Wei Bai, Myung Cho, Weiyu Xu

arxiv:1212.0877 v1 · 2012-12-04 · cs.IT · 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{IGFUZWSR7S34ZNKVDHTGUJ2SIN}

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	2026-05-18T03:39:14.201837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

418b4cda51fcb7ccb55519e66a2752436a6e7b3c6480f6eeffc6f4978ba1c141

Aliases

arxiv: 1212.0877 · arxiv_version: 1212.0877v1 · doi: 10.48550/arxiv.1212.0877 · pith_short_12: IGFUZWSR7S34 · pith_short_16: IGFUZWSR7S34ZNKV · pith_short_8: IGFUZWSR

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/IGFUZWSR7S34ZNKVDHTGUJ2SIN \
  | 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: 418b4cda51fcb7ccb55519e66a2752436a6e7b3c6480f6eeffc6f4978ba1c141

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ab3e036197a5586469412806a517c2c144d4390b0fd2b8daafc4d397351aab9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-12-04T21:20:21Z",
    "title_canon_sha256": "cf0134d96e4a859a117d06c412aab7b660661efb3a6190d22b14f7c7c410a987"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0877",
    "kind": "arxiv",
    "version": 1
  }
}