Pith Number

pith:Q6M4SM6S

pith:2012:Q6M4SM6SXKI5NGLDSRLXSYDJKP

not attested not anchored not stored refs pending

Maximum A Posteriori Covariance Estimation Using a Power Inverse Wishart Prior

Jon Sporring, S{\o}ren Feodor Nielsen

arxiv:1206.2054 v1 · 2012-06-10 · 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{Q6M4SM6SXKI5NGLDSRLXSYDJKP}

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	2026-05-18T03:53:53.576481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8799c933d2ba91d69963945779606953cb25d3bd731b821f1641185555abcefd

Aliases

arxiv: 1206.2054 · arxiv_version: 1206.2054v1 · doi: 10.48550/arxiv.1206.2054 · pith_short_12: Q6M4SM6SXKI5 · pith_short_16: Q6M4SM6SXKI5NGLD · pith_short_8: Q6M4SM6S

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/Q6M4SM6SXKI5NGLDSRLXSYDJKP \
  | 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: 8799c933d2ba91d69963945779606953cb25d3bd731b821f1641185555abcefd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f06586a38afedee0e4203b8d2f97baaf4c9f6577fb372f923a2e30542e0c96c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-06-10T20:23:31Z",
    "title_canon_sha256": "981c5ec8fb7c29e526ee1a7e73a9dbbb14c1769724d8595e7972248b65477121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2054",
    "kind": "arxiv",
    "version": 1
  }
}