Pith Number

pith:GUFRRUXS

pith:2018:GUFRRUXSPMNPOE446ZET6XGOQW

not attested not anchored not stored refs pending

Large Spectral Density Matrix Estimation by Thresholding

Amy Kuceyeski, Sumanta Basu, Yige Li, Yiming Sun

arxiv:1812.00532 v1 · 2018-12-03 · stat.ME · math.ST · stat.ML · 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{GUFRRUXSPMNPOE446ZET6XGOQW}

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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

Spectral approximation for the separable covariance mixture model

Receipt and verification

First computed	2026-05-17T23:59:21.077508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

350b18d2f27b1af7139cf6493f5cce8596f42042d751007127fe328f46f8df98

Aliases

arxiv: 1812.00532 · arxiv_version: 1812.00532v1 · doi: 10.48550/arxiv.1812.00532 · pith_short_12: GUFRRUXSPMNP · pith_short_16: GUFRRUXSPMNPOE44 · pith_short_8: GUFRRUXS

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/GUFRRUXSPMNPOE446ZET6XGOQW \
  | 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: 350b18d2f27b1af7139cf6493f5cce8596f42042d751007127fe328f46f8df98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c999f67d45a59589fc1bbed51ec7fd7b7f826b0d9df3b0b44508e36e95906c58",
    "cross_cats_sorted": [
      "math.ST",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-12-03T03:04:08Z",
    "title_canon_sha256": "62a6663c004babdb6f063ac50c4fa48237b95279738c5af53c94a88a61ebbb79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.00532",
    "kind": "arxiv",
    "version": 1
  }
}