Pith Number

pith:V4GNIBLQ

pith:2015:V4GNIBLQZSK4O5KCTYRQCJX7OV

not attested not anchored not stored refs pending

Constructing Analytically Tractable Ensembles of Non-Stationary Covariances with an Application to Financial Data

Frederik Meudt, Martin Theissen, Rudi Sch\"afer, Thomas Guhr

arxiv:1503.01584 v2 · 2015-03-05 · q-fin.ST · cond-mat.stat-mech · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V4GNIBLQZSK4O5KCTYRQCJX7OV}

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	2026-05-18T01:25:01.611026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af0cd40570cc95c775429e230126ff75780150692f67ab7ee55bcbdd96217602

Aliases

arxiv: 1503.01584 · arxiv_version: 1503.01584v2 · doi: 10.48550/arxiv.1503.01584 · pith_short_12: V4GNIBLQZSK4 · pith_short_16: V4GNIBLQZSK4O5KC · pith_short_8: V4GNIBLQ

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/V4GNIBLQZSK4O5KCTYRQCJX7OV \
  | 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: af0cd40570cc95c775429e230126ff75780150692f67ab7ee55bcbdd96217602

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2b9f59afa4ae254e11acac9e9e1aaea3427e76f9511f91e48bb6825ed58cdbd",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-fin.ST",
    "submitted_at": "2015-03-05T09:34:11Z",
    "title_canon_sha256": "a66f8a0eab63e97cc4a046288fb56c9ba6e6eaf3e0cd8cf96fc889f8d0671322"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01584",
    "kind": "arxiv",
    "version": 2
  }
}