Pith Number

pith:GPVK7CJR

pith:2020:GPVK7CJRBHSWJNHJJ3HCYJR4BT

not attested not anchored not stored refs pending

State Dependence and Unobserved Heterogeneity in the Extensive Margin of Trade

Amrei Stammann, Joschka Wanner, Julian Hinz

arxiv:2004.12655 v2 · 2020-04-27 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GPVK7CJRBHSWJNHJJ3HCYJR4BT}

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.

Cited by

1 paper in Pith

(Debiased) Inference for Fixed Effects Estimators with Three-Dimensional Panel and Network Data

Receipt and verification

First computed	2026-07-05T03:00:27.343067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33eaaf893109e564b4e94ece2c263c0cd54d521a0ba47df0c34348b0ee8e05a0

Aliases

arxiv: 2004.12655 · arxiv_version: 2004.12655v2 · doi: 10.48550/arxiv.2004.12655 · pith_short_12: GPVK7CJRBHSW · pith_short_16: GPVK7CJRBHSWJNHJ · pith_short_8: GPVK7CJR

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/GPVK7CJRBHSWJNHJJ3HCYJR4BT \
  | 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: 33eaaf893109e564b4e94ece2c263c0cd54d521a0ba47df0c34348b0ee8e05a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02ad63eec63b49162ba2f3678be349a14b1f8f7c38ca5d7a1578947716ef6045",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2020-04-27T09:07:26Z",
    "title_canon_sha256": "b29082237d6212950d6297eb501865a29a9a222487e6962d08793b100d732d59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.12655",
    "kind": "arxiv",
    "version": 2
  }
}