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Pith Number

pith:ATLCI7TU

pith:2018:ATLCI7TUOTEC4ZSUIRVF4YHYFW
not attested not anchored not stored refs pending

Improving the condition number of estimated covariance matrices

Amos S. Lawless, Jemima M. Tabeart, Joanne A. Waller, Nancy K. Nichols, Sarah L. Dance

arxiv:1810.10984 v4 · 2018-10-25 · math.OC · stat.ME

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\usepackage{pith}
\pithnumber{ATLCI7TUOTEC4ZSUIRVF4YHYFW}

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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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-05T00:08:24.527470Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

04d6247e7474c82e6654446a5e60f82da04ff0afa0a76b319c6f3c65156695e9

Aliases

arxiv: 1810.10984 · arxiv_version: 1810.10984v4 · doi: 10.48550/arxiv.1810.10984 · pith_short_12: ATLCI7TUOTEC · pith_short_16: ATLCI7TUOTEC4ZSU · pith_short_8: ATLCI7TU
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ATLCI7TUOTEC4ZSUIRVF4YHYFW \
  | 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: 04d6247e7474c82e6654446a5e60f82da04ff0afa0a76b319c6f3c65156695e9
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e37441942438939fe75493e63cf1ace976e64a86dddb11e12eeea25b962ad1a5",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-25T17:18:11Z",
    "title_canon_sha256": "46049d60db20e05e7ee169936bdb59e6c66a9af062624235523dea189786e251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10984",
    "kind": "arxiv",
    "version": 4
  }
}