Pith Number

pith:DAP2S6MC

pith:2013:DAP2S6MCRVKA3SAGDLKT25IH6O

not attested not anchored not stored refs pending

Derivative-Free Estimation of the Score Vector and Observed Information Matrix with Application to State-Space Models

Arnaud Doucet (University of Oxford), Pierre E. Jacob (Harvard University), Sylvain Rubenthaler (Universit\'e de Nice-Sophia Antipolis)

arxiv:1304.5768 v3 · 2013-04-21 · stat.ME · 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{DAP2S6MCRVKA3SAGDLKT25IH6O}

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	2026-05-18T01:37:02.671383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181fa979828d540dc8061ad53d7507f3b39a429d17d643b55984680d55b12590

Aliases

arxiv: 1304.5768 · arxiv_version: 1304.5768v3 · doi: 10.48550/arxiv.1304.5768 · pith_short_12: DAP2S6MCRVKA · pith_short_16: DAP2S6MCRVKA3SAG · pith_short_8: DAP2S6MC

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/DAP2S6MCRVKA3SAGDLKT25IH6O \
  | 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: 181fa979828d540dc8061ad53d7507f3b39a429d17d643b55984680d55b12590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4260786a1c678547b268bc62ee75fac4cb28924484d86990433bee0afbcb7a9e",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-04-21T17:25:25Z",
    "title_canon_sha256": "9c9ef113f763549ff5672208a0d49f6fd9dc5a8c3485481424e513d07e9326a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5768",
    "kind": "arxiv",
    "version": 3
  }
}