Pith Number

pith:4NGARJIY

pith:2018:4NGARJIY6EMZS7GNYTKWOY7F7X

not attested not anchored not stored refs pending

Hierarchical communities in the walnut structure of the Japanese production network

Abhijit Chakraborty, Hideaki Aoyama, Hiroshi Iyetomi, Hiroyasu Inoue, Takashi Iino, Yoshi Fujiwara, Yuichi Kichikawa

arxiv:1808.10090 v1 · 2018-08-30 · physics.soc-ph · q-fin.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4NGARJIY6EMZS7GNYTKWOY7F7X}

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	2026-05-18T00:06:49.853791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e34c08a518f119997ccdc4d56763e5fdd4d1b440829fd647bbfcba1fb143f4a8

Aliases

arxiv: 1808.10090 · arxiv_version: 1808.10090v1 · doi: 10.48550/arxiv.1808.10090 · pith_short_12: 4NGARJIY6EMZ · pith_short_16: 4NGARJIY6EMZS7GN · pith_short_8: 4NGARJIY

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/4NGARJIY6EMZS7GNYTKWOY7F7X \
  | 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: e34c08a518f119997ccdc4d56763e5fdd4d1b440829fd647bbfcba1fb143f4a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bd86bc46cb8e43d67fbcf08cf8b6b2b6bb9c5e124020b0174a0a0ba3d97f551",
    "cross_cats_sorted": [
      "q-fin.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-08-30T02:39:50Z",
    "title_canon_sha256": "c0e452cce875774390bac9f2ac4c2e4025ac27cb9cf7867886d9fb163cb51fb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10090",
    "kind": "arxiv",
    "version": 1
  }
}