Pith Number

pith:SZ4HYDMP

pith:2015:SZ4HYDMPGMT4HP3TTVSTWJNFHA

not attested not anchored not stored refs pending

Robust estimation of precision matrices under cellwise contamination

Garth Tarr, Neville C. Weber, Samuel M\"uller

arxiv:1501.01950 v1 · 2015-01-08 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SZ4HYDMPGMT4HP3TTVSTWJNFHA}

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	2026-05-18T01:32:08.243026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96787c0d8f3327c3bf739d653b25a53808041f69460e50846f1cda05aae51593

Aliases

arxiv: 1501.01950 · arxiv_version: 1501.01950v1 · doi: 10.48550/arxiv.1501.01950 · pith_short_12: SZ4HYDMPGMT4 · pith_short_16: SZ4HYDMPGMT4HP3T · pith_short_8: SZ4HYDMP

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/SZ4HYDMPGMT4HP3TTVSTWJNFHA \
  | 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: 96787c0d8f3327c3bf739d653b25a53808041f69460e50846f1cda05aae51593

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b443e7a70a9e60718d4a09a69d27d9851c1a1e75e8cf3951a890ce8ee38e489",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-01-08T20:36:18Z",
    "title_canon_sha256": "f7d4306e6c715405aeb041500fb883f12b34bc125242614678bfdec4f1c9fb17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01950",
    "kind": "arxiv",
    "version": 1
  }
}