Pith Number

pith:MDPO36HK

pith:2020:MDPO36HKJGZZDCLNININTECDSI

not attested not anchored not stored refs pending

Protocol for a Study of the Effect of Surface Mining in Central Appalachia on Adverse Birth Outcomes

Dan Firth, Dylan S. Small, Heather Burris, Luke Keele, Matthew Huber, Molly Passarella, Scott Lorch

arxiv:2005.01873 v1 · 2020-05-04 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDPO36HKJGZZDCLNININTECDSI}

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	2026-07-05T01:00:20.423738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60deedf8ea49b391896d4350d99043920b87cf0f58a682cbe94610f82f026ffb

Aliases

arxiv: 2005.01873 · arxiv_version: 2005.01873v1 · doi: 10.48550/arxiv.2005.01873 · pith_short_12: MDPO36HKJGZZ · pith_short_16: MDPO36HKJGZZDCLN · pith_short_8: MDPO36HK

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/MDPO36HKJGZZDCLNININTECDSI \
  | 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: 60deedf8ea49b391896d4350d99043920b87cf0f58a682cbe94610f82f026ffb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0627ee3fc96f975c90c070786b96fee877172c7f9e7b5f8e5db8494410528eda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2020-05-04T22:27:07Z",
    "title_canon_sha256": "9dfa5ced075bcd11191748c0a4e225156954e1e0838189cffa178b48f9216ac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01873",
    "kind": "arxiv",
    "version": 1
  }
}