Pith Number

pith:Q5UGBM3S

pith:2014:Q5UGBM3SD2XIOVE766MNSCRL57

not attested not anchored not stored refs pending

Quantitative Analysis of Genealogy Using Digitised Family Trees

Michael Fire, Thomas Chesney, Yuval Elovici

arxiv:1408.5571 v2 · 2014-08-24 · cs.SI · physics.soc-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{Q5UGBM3SD2XIOVE766MNSCRL57}

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	2026-05-18T02:43:53.554811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

876860b3721eae87549ff798d90a2beffcfc26dcb01c656e99a0c762befac65b

Aliases

arxiv: 1408.5571 · arxiv_version: 1408.5571v2 · doi: 10.48550/arxiv.1408.5571 · pith_short_12: Q5UGBM3SD2XI · pith_short_16: Q5UGBM3SD2XIOVE7 · pith_short_8: Q5UGBM3S

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/Q5UGBM3SD2XIOVE766MNSCRL57 \
  | 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: 876860b3721eae87549ff798d90a2beffcfc26dcb01c656e99a0c762befac65b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76f95e957457dafe31633d23ad469c2913b2b515b0c1ea7e46d41425c3150eac",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2014-08-24T07:11:20Z",
    "title_canon_sha256": "27fa10748dda643949fb174a96ab28d12102ed7ab586037724bc4d89a157a7a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5571",
    "kind": "arxiv",
    "version": 2
  }
}