Pith Number

pith:YGJBL4HX

pith:2026:YGJBL4HX54ZFVZZXS4UMRTJWQQ

not attested not anchored not stored refs pending

Institutions and the transmission of upper-tail human capital: scientific lineages across a millennium

Hiroyuki Chuma, Kanji Otsuka, Yoichi Sato

arxiv:2605.31470 v1 · 2026-05-29 · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YGJBL4HX54ZFVZZXS4UMRTJWQQ}

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	2026-06-01T02:04:07.767943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c19215f0f7ef325ae7379728c8cd368422bf6087a4c12a73d4d9fd667d73a14b

Aliases

arxiv: 2605.31470 · arxiv_version: 2605.31470v1 · doi: 10.48550/arxiv.2605.31470 · pith_short_12: YGJBL4HX54ZF · pith_short_16: YGJBL4HX54ZFVZZX · pith_short_8: YGJBL4HX

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/YGJBL4HX54ZFVZZXS4UMRTJWQQ \
  | 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: c19215f0f7ef325ae7379728c8cd368422bf6087a4c12a73d4d9fd667d73a14b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8a25d3a1797d0329f9afcc7db2cc97a74d42ad0f590cb2eed940a22a61b528",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2026-05-29T16:02:02Z",
    "title_canon_sha256": "4cf77bf2561c4b72b3dc9834d206495679f95fdc9d0f81b75e6448c184768da0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.31470",
    "kind": "arxiv",
    "version": 1
  }
}