Pith Number

pith:ZI22BY74

pith:2009:ZI22BY74WR3MWJOGRQ7DWW63PL

not attested not anchored not stored refs pending

The Asymptotic Efficiency of Improved Prediction Intervals

Khreshna Syuhada, Paul Kabaila

arxiv:0901.1911 v1 · 2009-01-14 · math.ST · 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{ZI22BY74WR3MWJOGRQ7DWW63PL}

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	2026-05-18T04:12:21.395202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca35a0e3fcb476cb25c68c3e3b5bdb7af169b555e694ef0955cb5d92dd07ed8f

Aliases

arxiv: 0901.1911 · arxiv_version: 0901.1911v1 · doi: 10.48550/arxiv.0901.1911 · pith_short_12: ZI22BY74WR3M · pith_short_16: ZI22BY74WR3MWJOG · pith_short_8: ZI22BY74

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/ZI22BY74WR3MWJOGRQ7DWW63PL \
  | 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: ca35a0e3fcb476cb25c68c3e3b5bdb7af169b555e694ef0955cb5d92dd07ed8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64e74b00eada39ec0c7215110df1f35f104d8d55c450a39312bcaf45f8a672c0",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2009-01-14T00:30:01Z",
    "title_canon_sha256": "3429341565f7f232614eb8ed524ce0f142413ed41ab2af9832d27fcfe3c5d1fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1911",
    "kind": "arxiv",
    "version": 1
  }
}