Pith Number

pith:CLJBZ7UG

pith:2019:CLJBZ7UGGYP7QGZGE5BC73W5ZP

not attested not anchored not stored refs pending

Cramer-Rao Bound for Estimation After Model Selection and its Application to Sparse Vector Estimation

Elad Meir, Tirza Routtenberg

arxiv:1904.06837 v2 · 2019-04-15 · eess.SP · 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{CLJBZ7UGGYP7QGZGE5BC73W5ZP}

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	2026-07-05T09:27:43.892116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12d21cfe86361ff81b2627422feeddcbd75e869b61887e5733a5c131988e7d87

Aliases

arxiv: 1904.06837 · arxiv_version: 1904.06837v2 · doi: 10.48550/arxiv.1904.06837 · pith_short_12: CLJBZ7UGGYP7 · pith_short_16: CLJBZ7UGGYP7QGZG · pith_short_8: CLJBZ7UG

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/CLJBZ7UGGYP7QGZGE5BC73W5ZP \
  | 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: 12d21cfe86361ff81b2627422feeddcbd75e869b61887e5733a5c131988e7d87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85aa9cb1ce38e6a0d7918ea5a413423975e9730577ae19803423e65eb782d4e1",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-04-15T04:31:09Z",
    "title_canon_sha256": "4cb1f336668cfb5e2b700867d7b27bd8c75c13ead371016d074723f8090450c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06837",
    "kind": "arxiv",
    "version": 2
  }
}