Pith Number

pith:XNYB2CNR

pith:2015:XNYB2CNRARTIX32ZDTHRFVQ6VW

not attested not anchored not stored refs pending

Extreme Compressive Sampling for Covariance Estimation

Aarti Singh, Akshay Krishnamurthy, Martin Azizyan

arxiv:1506.00898 v3 · 2015-06-02 · stat.ML · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XNYB2CNRARTIX32ZDTHRFVQ6VW}

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	2026-05-17T23:56:25.406948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb701d09b104668bef591ccf12d61ead8b393777bb6c5205e6786f833a6dd5b4

Aliases

arxiv: 1506.00898 · arxiv_version: 1506.00898v3 · doi: 10.48550/arxiv.1506.00898 · pith_short_12: XNYB2CNRARTI · pith_short_16: XNYB2CNRARTIX32Z · pith_short_8: XNYB2CNR

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/XNYB2CNRARTIX32ZDTHRFVQ6VW \
  | 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: bb701d09b104668bef591ccf12d61ead8b393777bb6c5205e6786f833a6dd5b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5ec480352a5fab8f457a3700b96ce1dc8fe9fcd35819fbc260b555081af543f",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-06-02T14:32:28Z",
    "title_canon_sha256": "be297de03a0c36569b439337f34e91b3910dbf6e325be8e2bb0cc05249e13f33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.00898",
    "kind": "arxiv",
    "version": 3
  }
}