Pith Number

pith:Q5AU3MCR

pith:2024:Q5AU3MCRQPZP2I5HLBOWBGHMZL

not attested not anchored not stored refs pending

Optimal Estimation of Structured Covariance Operators

Daniel Sanz-Alonso, Jiaheng Chen, Nathan Waniorek, Omar Al-Ghattas

arxiv:2408.02109 v2 · 2024-08-04 · math.ST · math.PR · stat.TH

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5AU3MCRQPZP2I5HLBOWBGHMZL}

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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

Functional Multi-Reference Alignment via Deconvolution

Receipt and verification

First computed	2026-07-05T11:28:31.141504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87414db05183f2fd23a7585d6098eccacb8f116319246b938edcf66052f91bc3

Aliases

arxiv: 2408.02109 · arxiv_version: 2408.02109v2 · doi: 10.48550/arxiv.2408.02109 · pith_short_12: Q5AU3MCRQPZP · pith_short_16: Q5AU3MCRQPZP2I5H · pith_short_8: Q5AU3MCR

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/Q5AU3MCRQPZP2I5HLBOWBGHMZL \
  | 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: 87414db05183f2fd23a7585d6098eccacb8f116319246b938edcf66052f91bc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "098238f016002356347732c1aee2685ae7e18716d644f0f6699f163852950191",
    "cross_cats_sorted": [
      "math.PR",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2024-08-04T18:39:17Z",
    "title_canon_sha256": "bcc3236ba605398ff1eb92eb96e17a98cbbb7fa95b4eea7173f4a2f5c21f0ebd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.02109",
    "kind": "arxiv",
    "version": 2
  }
}