Pith Number

pith:CNY3RE6B

pith:2022:CNY3RE6BNNRYJQMOMLFRYBLNN3

not attested not anchored not stored refs pending

Same environment, stratified impacts? Air pollution, extreme temperatures, and birth weight in south China

Emily Hannum, Fan Wang, Jere R. Behrman, Qingguo Zhao, Xiaoying Liu

arxiv:2204.00219 v1 · 2022-04-01 · 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{CNY3RE6BNNRYJQMOMLFRYBLNN3}

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	2026-07-05T04:10:44.528733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1371b893c16b6384c18e62cb1c056d6ee52fd0dbff22b39691c5257cf735b155

Aliases

arxiv: 2204.00219 · arxiv_version: 2204.00219v1 · doi: 10.48550/arxiv.2204.00219 · pith_short_12: CNY3RE6BNNRY · pith_short_16: CNY3RE6BNNRYJQMO · pith_short_8: CNY3RE6B

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/CNY3RE6BNNRYJQMOMLFRYBLNN3 \
  | 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: 1371b893c16b6384c18e62cb1c056d6ee52fd0dbff22b39691c5257cf735b155

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9f4c0d25cd8e8d8d0ed5e7a43124cba3504c2f143353ae15d22d1daa981e148",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2022-04-01T05:46:59Z",
    "title_canon_sha256": "57c45185f6a00d7204e9a92ad659546c7f60c76a102a0ddb1a2137631b86f554"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.00219",
    "kind": "arxiv",
    "version": 1
  }
}