Pith Number

pith:ZIDKQF2R

pith:2013:ZIDKQF2RDUVYEGSZSYRZJ5YBVA

not attested not anchored not stored refs pending

Minimum Variance Estimation of a Sparse Vector within the Linear Gaussian Model: An RKHS Approach

Alexander Jung, Franz Hlawatsch, Sebastian Schmutzhard, Yonina C. Eldar, Zvika Ben-Haim

arxiv:1304.3886 v1 · 2013-04-14 · 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{ZIDKQF2RDUVYEGSZSYRZJ5YBVA}

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	2026-05-18T03:28:03.913091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca06a817511d2b821a59962394f701a83398a912ed51d3885004cf3017257b30

Aliases

arxiv: 1304.3886 · arxiv_version: 1304.3886v1 · doi: 10.48550/arxiv.1304.3886 · pith_short_12: ZIDKQF2RDUVY · pith_short_16: ZIDKQF2RDUVYEGSZ · pith_short_8: ZIDKQF2R

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/ZIDKQF2RDUVYEGSZSYRZJ5YBVA \
  | 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: ca06a817511d2b821a59962394f701a83398a912ed51d3885004cf3017257b30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d99a66e711444d37c635dfba05ac9bcf1f4462da09b1d785a2944ebc4d66496e",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-14T06:56:40Z",
    "title_canon_sha256": "4a70a76c9721b5afa21da5200c76b7ec47f8e28fcecb1907ac6940db999a4ff8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3886",
    "kind": "arxiv",
    "version": 1
  }
}