Pith Number

pith:IAMGG6OM

pith:2014:IAMGG6OMI4YVV7TSME7N2ZMBAM

not attested not anchored not stored refs pending

Estimation for the Linear Model with Uncertain Covariance Matrices

Dave Zachariah, Magnus Jansson, Mats Bengtsson, Nafiseh Shariati, Saikat Chatterjee

arxiv:1401.7195 v1 · 2014-01-28 · math.ST · 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{IAMGG6OMI4YVV7TSME7N2ZMBAM}

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	2026-05-18T02:56:43.533203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40186379cc47315afe72613edd658103206e38066578530a7695142ed76f361c

Aliases

arxiv: 1401.7195 · arxiv_version: 1401.7195v1 · doi: 10.48550/arxiv.1401.7195 · pith_short_12: IAMGG6OMI4YV · pith_short_16: IAMGG6OMI4YVV7TS · pith_short_8: IAMGG6OM

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/IAMGG6OMI4YVV7TSME7N2ZMBAM \
  | 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: 40186379cc47315afe72613edd658103206e38066578530a7695142ed76f361c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcd0276c980d81eee47db5f90c8b1fdc2896d1ce56a352f3cc6852002d4de475",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-01-28T14:37:22Z",
    "title_canon_sha256": "502c5fb849415c08e677cf8155d39e26ee2c4bd81a26a961361326bd47e34a24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7195",
    "kind": "arxiv",
    "version": 1
  }
}