Pith Number

pith:LFI2X7VF

pith:2018:LFI2X7VFBXUIXZWL3KUE6QMEQV

not attested not anchored not stored refs pending

Cramer-Rao Bound for Constrained Parameter Estimation Using Lehmann-Unbiasedness

Eyal Nitzan, Joseph Tabrikian, Tirza Routtenberg

arxiv:1802.02384 v3 · 2018-02-07 · 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{LFI2X7VFBXUIXZWL3KUE6QMEQV}

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	2026-05-17T23:53:33.534523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5951abfea50de88be6cbdaa84f41848570d3413afb0960556c621211bc46df13

Aliases

arxiv: 1802.02384 · arxiv_version: 1802.02384v3 · doi: 10.48550/arxiv.1802.02384 · pith_short_12: LFI2X7VFBXUI · pith_short_16: LFI2X7VFBXUIXZWL · pith_short_8: LFI2X7VF

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/LFI2X7VFBXUIXZWL3KUE6QMEQV \
  | 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: 5951abfea50de88be6cbdaa84f41848570d3413afb0960556c621211bc46df13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2bf69fcbecce93ad6e15d03c8229ad0e7d46a258597b0f48b8e8945fb619d07",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-02-07T10:59:36Z",
    "title_canon_sha256": "42f071f45d2ef03f6c881a5202a8af7fe2d5fcff4561cb0227726e5c2fc6f83c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02384",
    "kind": "arxiv",
    "version": 3
  }
}