Pith Number

pith:4NDCALKF

pith:2019:4NDCALKFWCNSTVIG5UZKHKF4FR

not attested not anchored not stored refs pending

Asymptotic Performance of Complex M-estimators for Multivariate Location and Scatter Estimation

Arnaud Breloy, Bruno M\'eriaux, Chengfang Ren, Mohammed Nabil El Korso, Philippe Forster

arxiv:1901.02640 v1 · 2019-01-09 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NDCALKFWCNSTVIG5UZKHKF4FR}

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	2026-05-17T23:55:42.303545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e346202d45b09b29d506ed32a3a8bc2c7b7dd5781fbcdb822e9989c84714acc8

Aliases

arxiv: 1901.02640 · arxiv_version: 1901.02640v1 · doi: 10.48550/arxiv.1901.02640 · pith_short_12: 4NDCALKFWCNS · pith_short_16: 4NDCALKFWCNSTVIG · pith_short_8: 4NDCALKF

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/4NDCALKFWCNSTVIG5UZKHKF4FR \
  | 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: e346202d45b09b29d506ed32a3a8bc2c7b7dd5781fbcdb822e9989c84714acc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "233ce852930107eba9b421f168db04151e9fed120dfc8cad666e18405ef44345",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-01-09T08:55:48Z",
    "title_canon_sha256": "a0f616b1054237aea931c7ffb8d3a0b7b0e9a262f78b5181cf019269956c0077"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02640",
    "kind": "arxiv",
    "version": 1
  }
}