Pith Number

pith:YALDROPV

pith:2024:YALDROPVTOLBMKB7YPPZRYUETQ

not attested not anchored not stored refs pending

Using child-woman ratios to infer demographic rates in historical populations with limited data

John Bryant, Tahu Kukutai

arxiv:2402.02666 v1 · 2024-02-05 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YALDROPVTOLBMKB7YPPZRYUETQ}

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	2026-07-05T07:41:16.968395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c01638b9f59b9616283fc3df98e2849c0a06431b7ed33517923e9617758ba40a

Aliases

arxiv: 2402.02666 · arxiv_version: 2402.02666v1 · doi: 10.48550/arxiv.2402.02666 · pith_short_12: YALDROPVTOLB · pith_short_16: YALDROPVTOLBMKB7 · pith_short_8: YALDROPV

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/YALDROPVTOLBMKB7YPPZRYUETQ \
  | 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: c01638b9f59b9616283fc3df98e2849c0a06431b7ed33517923e9617758ba40a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "262ba47a1507368bb745d012381e4124b7f97acb3817665608e993bd5c719bf5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2024-02-05T01:50:01Z",
    "title_canon_sha256": "30c09befe549ec4eccf87e3e3db752a069b74dd771525913b9691be51be61243"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.02666",
    "kind": "arxiv",
    "version": 1
  }
}