Pith Number

pith:EKFJ73QG

pith:2013:EKFJ73QGM7DRGCEAHTXUJDDVW2

not attested not anchored not stored refs pending

Strong limit of the extreme eigenvalues of a symmetrized auto-cross covariance matrix

Baisuo Jin, Chen Wang, K. Krishnan Nair, Matthew Harding, Z. D. Bai

arxiv:1312.2277 v2 · 2013-12-08 · 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{EKFJ73QGM7DRGCEAHTXUJDDVW2}

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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	2026-05-18T01:28:35.351688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

228a9fee0667c71308803cef448c75b6b6343b32b304f5cd7f0cd967278d6edb

Aliases

arxiv: 1312.2277 · arxiv_version: 1312.2277v2 · doi: 10.48550/arxiv.1312.2277 · pith_short_12: EKFJ73QGM7DR · pith_short_16: EKFJ73QGM7DRGCEA · pith_short_8: EKFJ73QG

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/EKFJ73QGM7DRGCEAHTXUJDDVW2 \
  | 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: 228a9fee0667c71308803cef448c75b6b6343b32b304f5cd7f0cd967278d6edb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5821d2ec3490122d7c776da1067bc6806fb11af02f348ec99593caa731d3ae8",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-12-08T22:55:01Z",
    "title_canon_sha256": "f3a811ab030f099b0b420fc9af08b57ed9fe94f1cba96500119a77a01caacf88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2277",
    "kind": "arxiv",
    "version": 2
  }
}