Pith Number

pith:ZWV3DXGG

pith:2025:ZWV3DXGGSDSRUQ6CJMBZSLO4QP

not attested not anchored not stored refs pending

Balancing the Last Birth: A Game-Theoretical Resolution to the Human Sex Ratio Puzzle

Hyeong-Chai Jeong, Nahyeon Lee, Ulf Dieckmann

arxiv:2507.10332 v1 · 2025-07-14 · physics.soc-ph · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWV3DXGGSDSRUQ6CJMBZSLO4QP}

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	2026-07-05T11:37:26.682265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdabb1dcc690e51a43c24b03992ddc83d7ec63330974254de615e63aaf228b26

Aliases

arxiv: 2507.10332 · arxiv_version: 2507.10332v1 · doi: 10.48550/arxiv.2507.10332 · pith_short_12: ZWV3DXGGSDSR · pith_short_16: ZWV3DXGGSDSRUQ6C · pith_short_8: ZWV3DXGG

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/ZWV3DXGGSDSRUQ6CJMBZSLO4QP \
  | 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: cdabb1dcc690e51a43c24b03992ddc83d7ec63330974254de615e63aaf228b26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f5ba637971ef5bc858e140d28ebbe151e6463a8574c526412fd6d974b5e5188",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2025-07-14T14:39:19Z",
    "title_canon_sha256": "1bf58a7e01daec03a25228d32346336984710df14bedad9404c14b04c896d887"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.10332",
    "kind": "arxiv",
    "version": 1
  }
}