Pith Number

pith:O2VVNLRE

pith:2017:O2VVNLRETCIWSR3BRTBISADYL2

not attested not anchored not stored refs pending

Asymmetric Matrix-Valued Covariances for Multivariate Random Fields on Spheres

Alfredo Alegr\'ia, Emilio Porcu, Reinhard Furrer

arxiv:1706.07766 v1 · 2017-06-23 · 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{O2VVNLRETCIWSR3BRTBISADYL2}

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	2026-05-18T00:29:38.952197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76ab56ae2498916947618cc28900785e9f43e199ed284d0d68c5b4d5352e91ee

Aliases

arxiv: 1706.07766 · arxiv_version: 1706.07766v1 · doi: 10.48550/arxiv.1706.07766 · pith_short_12: O2VVNLRETCIW · pith_short_16: O2VVNLRETCIWSR3B · pith_short_8: O2VVNLRE

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/O2VVNLRETCIWSR3BRTBISADYL2 \
  | 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: 76ab56ae2498916947618cc28900785e9f43e199ed284d0d68c5b4d5352e91ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42c388d1b60f4a21000ec42f1bb07fafe9b7ccc9c399c5feabef12f1d17352e5",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-06-23T16:16:34Z",
    "title_canon_sha256": "fe519f167f30f80f02faabfb720cb7b79c2dd4cbca5a95f98045e524fa9c1e36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07766",
    "kind": "arxiv",
    "version": 1
  }
}