Pith Number

pith:ZDXAFMCN

pith:2019:ZDXAFMCNTEFMT5ZHSMYVGWETO5

not attested not anchored not stored refs pending

On the estimation of high-dimensional integrated covariance matrix based on high-frequency data with multiple transactions

Moming Wang, Ningning Xia, You Zhou

arxiv:1908.08670 v2 · 2019-08-23 · math.ST · stat.AP · 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{ZDXAFMCNTEFMT5ZHSMYVGWETO5}

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	2026-07-05T00:02:28.702211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8ee02b04d990ac9f72793315358937755caf9106dd08ddb3a745689c5522719

Aliases

arxiv: 1908.08670 · arxiv_version: 1908.08670v2 · doi: 10.48550/arxiv.1908.08670 · pith_short_12: ZDXAFMCNTEFM · pith_short_16: ZDXAFMCNTEFMT5ZH · pith_short_8: ZDXAFMCN

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/ZDXAFMCNTEFMT5ZHSMYVGWETO5 \
  | 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: c8ee02b04d990ac9f72793315358937755caf9106dd08ddb3a745689c5522719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "562835a5cb6c3e24db585e441488cd5424a5b9b71ec7928127815d151723861c",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-08-23T05:30:05Z",
    "title_canon_sha256": "7a7f359f4d7d7375dda239094ebbf60cbdce64790c590ae84373648e5c522461"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08670",
    "kind": "arxiv",
    "version": 2
  }
}