Pith Number

pith:U2QU7R77

pith:2012:U2QU7R77KLNA7SWE36YKFKXFTC

not attested not anchored not stored refs pending

Panel Data Models with Nonadditive Unobserved Heterogeneity: Estimation and Inference

Ivan Fernandez-Val, Joonhwah Lee

arxiv:1206.2966 v2 · 2012-06-13 · stat.ME · econ.EM · math.ST · stat.AP · 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{U2QU7R77KLNA7SWE36YKFKXFTC}

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	2026-05-18T00:26:09.285771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6a14fc7ff52da0fcac4dfb0a2aae598969902541e10b2c25912a89f715bdc22

Aliases

arxiv: 1206.2966 · arxiv_version: 1206.2966v2 · doi: 10.48550/arxiv.1206.2966 · pith_short_12: U2QU7R77KLNA · pith_short_16: U2QU7R77KLNA7SWE · pith_short_8: U2QU7R77

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/U2QU7R77KLNA7SWE36YKFKXFTC \
  | 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: a6a14fc7ff52da0fcac4dfb0a2aae598969902541e10b2c25912a89f715bdc22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6ca841100181d08880664980c05863d4f0d89d154fc6b3856cbdd8501a092a6",
    "cross_cats_sorted": [
      "econ.EM",
      "math.ST",
      "stat.AP",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-06-13T23:10:58Z",
    "title_canon_sha256": "81cdb51acc8348d7a5988d649f96b463ab148b0f5c141d2742dba64e540980f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2966",
    "kind": "arxiv",
    "version": 2
  }
}