Pith Number

pith:NPKKDF7M

pith:2018:NPKKDF7MBKWYWHVMKOCTIIU4L7

not attested not anchored not stored refs pending

Big enterprise registration data imputation: Supporting spatiotemporal analysis of industries in China

Fa Li, Huayi Wu, Jianya Gong, Jiawen Zhang, Siyu Tian, Yuan Wang, Zhipeng Gui

arxiv:1804.03562 v2 · 2018-04-05 · cs.CY · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPKKDF7MBKWYWHVMKOCTIIU4L7}

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	2026-05-18T00:15:27.781989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd4a197ec0aad8b1eac538534229c5ffca61f08e4c3b3c91380585d98eecf69

Aliases

arxiv: 1804.03562 · arxiv_version: 1804.03562v2 · doi: 10.48550/arxiv.1804.03562 · pith_short_12: NPKKDF7MBKWY · pith_short_16: NPKKDF7MBKWYWHVM · pith_short_8: NPKKDF7M

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/NPKKDF7MBKWYWHVMKOCTIIU4L7 \
  | 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: 6bd4a197ec0aad8b1eac538534229c5ffca61f08e4c3b3c91380585d98eecf69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9b74d7f8fd82a109f06cac03efea5fc1ed470f8b22d17240e1631eff9afc6d2",
    "cross_cats_sorted": [
      "cs.PF"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-04-05T06:36:25Z",
    "title_canon_sha256": "57f5497757dd72348b9108b8a1af428c3a6c132a2a93aa5315b4b3a75395a703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03562",
    "kind": "arxiv",
    "version": 2
  }
}