Pith Number

pith:4KZX75ZA

pith:2013:4KZX75ZABRSEAA3JGWWFZ6X2JX

not attested not anchored not stored refs pending

Present Y chromosomes support the Persian ancestry of Sayyid Ajjal Shams al-Din Omar and Eminent Navigator Zheng He

Chuan-Chao Wang, Dali Yao, Hui Li, Li Jin, Ling-Xiang Wang, Manfei Zhang

arxiv:1310.5466 v1 · 2013-10-21 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4KZX75ZABRSEAA3JGWWFZ6X2JX}

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	2026-05-18T03:09:35.577411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2b37ff7200c6440036935ac5cfafa4dc448a07f24cc0f407e2b9ac9cbb7fd00

Aliases

arxiv: 1310.5466 · arxiv_version: 1310.5466v1 · doi: 10.48550/arxiv.1310.5466 · pith_short_12: 4KZX75ZABRSE · pith_short_16: 4KZX75ZABRSEAA3J · pith_short_8: 4KZX75ZA

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/4KZX75ZABRSEAA3JGWWFZ6X2JX \
  | 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: e2b37ff7200c6440036935ac5cfafa4dc448a07f24cc0f407e2b9ac9cbb7fd00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7c2f7466e942a45dbe76b5105d4c3f0793c284ffa551af0e921efc695c0ac06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2013-10-21T08:52:47Z",
    "title_canon_sha256": "70741a06f51769fc2c83ad59414ffcfb93c5153c9b6fde26d594429dd46eca25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5466",
    "kind": "arxiv",
    "version": 1
  }
}