Pith Number

pith:CDHWEXVC

pith:2019:CDHWEXVC3LOZNSUAA5TFIFYVLM

not attested not anchored not stored refs pending

Particulate Air Pollution, Birth Outcomes, and Infant Mortality: Evidence from Japan's Automobile Emission Control Law of 1992

Daisuke Kurisu, Kota Ogasawara, Nana Nunokawa, Tatsuki Inoue

arxiv:1905.04417 v2 · 2019-05-11 · econ.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CDHWEXVC3LOZNSUAA5TFIFYVLM}

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	2026-07-05T00:24:54.939614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10cf625ea2dadd96ca8007665417155b0873c5077b22e4e0cb54baca7a061fa8

Aliases

arxiv: 1905.04417 · arxiv_version: 1905.04417v2 · doi: 10.48550/arxiv.1905.04417 · pith_short_12: CDHWEXVC3LOZ · pith_short_16: CDHWEXVC3LOZNSUA · pith_short_8: CDHWEXVC

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/CDHWEXVC3LOZNSUAA5TFIFYVLM \
  | 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: 10cf625ea2dadd96ca8007665417155b0873c5077b22e4e0cb54baca7a061fa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c5e23922d8954920a629085d570fee71488a649a0cc7a6e326effda4ebc5c2a",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2019-05-11T01:12:19Z",
    "title_canon_sha256": "da2e8fc4dc753c44653b67be9df1eebc57ae9399805089f20ab0dcf031285c39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04417",
    "kind": "arxiv",
    "version": 2
  }
}