Pith Number

pith:NAPEPZ2R

pith:2025:NAPEPZ2RXH42ISKKO3W6K4ZYYZ

not attested not anchored not stored refs pending

Ensemble Control Variates

Christopher Drovandi, Leah F. South, Long M. Nguyen

arxiv:2509.01091 v2 · 2025-09-01 · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAPEPZ2RXH42ISKKO3W6K4ZYYZ}

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	2026-07-05T12:03:52.697752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681e47e751b9f9a4494a76ede57338c6565c618536e0e3e19e83f69015fb1cc8

Aliases

arxiv: 2509.01091 · arxiv_version: 2509.01091v2 · doi: 10.48550/arxiv.2509.01091 · pith_short_12: NAPEPZ2RXH42 · pith_short_16: NAPEPZ2RXH42ISKK · pith_short_8: NAPEPZ2R

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/NAPEPZ2RXH42ISKKO3W6K4ZYYZ \
  | 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: 681e47e751b9f9a4494a76ede57338c6565c618536e0e3e19e83f69015fb1cc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa3c38deb3d9bc60ee78d5c987d8e07ee5ef0340c45e2e4849a4975c56caf6c1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2025-09-01T03:31:09Z",
    "title_canon_sha256": "b37ad0a68eb5864987e1032120b37b65232d520eb88fd8437b7de09442cf2d00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.01091",
    "kind": "arxiv",
    "version": 2
  }
}