Pith Number

pith:HGYWUMHD

pith:2026:HGYWUMHD5W4J2HJAW56CK6DR57

not attested not anchored not stored refs pending

Symmetry-Aware Convex Shrinkage for High-Dimensional Covariance Estimation

Mitchell A. Thornton

arxiv:2605.17111 v1 · 2026-05-16 · stat.ME · cs.IT · eess.SP · 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{HGYWUMHD5W4J2HJAW56CK6DR57}

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	2026-05-20T00:03:40.635974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b16a30e3edb89d1d20b77c257871eff22dd56f7409d51658d4171a63157895

Aliases

arxiv: 2605.17111 · arxiv_version: 2605.17111v1 · doi: 10.48550/arxiv.2605.17111 · pith_short_12: HGYWUMHD5W4J · pith_short_16: HGYWUMHD5W4J2HJA · pith_short_8: HGYWUMHD

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/HGYWUMHD5W4J2HJAW56CK6DR57 \
  | 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: 39b16a30e3edb89d1d20b77c257871eff22dd56f7409d51658d4171a63157895

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f645d480be2a920c1754f86043eff5db0b46444f5e90df91249ea527a8cf6294",
    "cross_cats_sorted": [
      "cs.IT",
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-05-16T18:31:23Z",
    "title_canon_sha256": "8892f56df60fbac562449b8f38a6531f85add2e2bce02647246c1958bd2c76f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17111",
    "kind": "arxiv",
    "version": 1
  }
}