Pith Number

pith:Z3AY2FDJ

pith:2015:Z3AY2FDJNIZYN5QV5PR7LZ4I4V

not attested not anchored not stored refs pending

Quickest Detection for Changes in Maximal kNN Coherence of Random Matrices

Alfred O. Hero III, Hamed Firouzi, Taposh Banerjee

arxiv:1508.04720 v3 · 2015-08-19 · math.ST · cs.IT · math.IT · math.PR · 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{Z3AY2FDJNIZYN5QV5PR7LZ4I4V}

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	2026-05-18T00:17:20.004981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cec18d14696a3386f615ebe3f5e788e577fe6b72474257eaf3c55a2321b69d5d

Aliases

arxiv: 1508.04720 · arxiv_version: 1508.04720v3 · doi: 10.48550/arxiv.1508.04720 · pith_short_12: Z3AY2FDJNIZY · pith_short_16: Z3AY2FDJNIZYN5QV · pith_short_8: Z3AY2FDJ

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/Z3AY2FDJNIZYN5QV5PR7LZ4I4V \
  | 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: cec18d14696a3386f615ebe3f5e788e577fe6b72474257eaf3c55a2321b69d5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c5a58d26eab19b6b1804291410972bbe554eb7d969990cacbb76d68c62efcde",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "math.PR",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-08-19T17:51:26Z",
    "title_canon_sha256": "2d18d23402e9f46df0a849bcd56690c0fb8bc00b521d4b3a035841e32d12a80a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04720",
    "kind": "arxiv",
    "version": 3
  }
}