Pith Number

pith:QVB5SSZS

pith:2019:QVB5SSZSJPEETKNTOXRO3DEFHL

not attested not anchored not stored refs pending

Regional economic status inference from information flow and talent mobility

Dan Yang, Jian Gao, Jin-Hu Liu, Jun Wang, Tao Zhou

arxiv:1902.05218 v1 · 2019-02-14 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVB5SSZSJPEETKNTOXRO3DEFHL}

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	2026-05-17T23:43:42.582346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8543d94b324bc849a9b375e2ed8c853ac620a2b69082d8c3aa698c447ba351c5

Aliases

arxiv: 1902.05218 · arxiv_version: 1902.05218v1 · doi: 10.48550/arxiv.1902.05218 · pith_short_12: QVB5SSZSJPEE · pith_short_16: QVB5SSZSJPEETKNT · pith_short_8: QVB5SSZS

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/QVB5SSZSJPEETKNTOXRO3DEFHL \
  | 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: 8543d94b324bc849a9b375e2ed8c853ac620a2b69082d8c3aa698c447ba351c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a6b3a1a563d1147206a405dfa3a986f5cc5986ae01b0af80a032dd161b097e5",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2019-02-14T04:54:20Z",
    "title_canon_sha256": "bf7f0b56beede652943d3f07d5b0434e9d8f6b33ed295f066303ac010c36353d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05218",
    "kind": "arxiv",
    "version": 1
  }
}