Pith Number

pith:PFPKAJLP

pith:2018:PFPKAJLPOTKMXSD4AAIN5UZROW

not attested not anchored not stored refs pending

A new and stable estimation method of country economic fitness and product complexity

Andrea Tacchella, Dario Mazzilli, Luciano Pietronero, Paolo Butt\`a, Vito D. P. Servedio

arxiv:1807.10276 v2 · 2018-07-23 · econ.GN · physics.soc-ph · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFPKAJLPOTKMXSD4AAIN5UZROW}

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	2026-05-18T00:00:51.657411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

795ea0256f74d4cbc87c0010ded33175bdf4bae960842a3d128aaaa0bbd7c50f

Aliases

arxiv: 1807.10276 · arxiv_version: 1807.10276v2 · doi: 10.48550/arxiv.1807.10276 · pith_short_12: PFPKAJLPOTKM · pith_short_16: PFPKAJLPOTKMXSD4 · pith_short_8: PFPKAJLP

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/PFPKAJLPOTKMXSD4AAIN5UZROW \
  | 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: 795ea0256f74d4cbc87c0010ded33175bdf4bae960842a3d128aaaa0bbd7c50f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c38f25847609d3d319adb317a37e568e1542598efbcc5a3eb544f909a8da370",
    "cross_cats_sorted": [
      "physics.soc-ph",
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2018-07-23T14:07:29Z",
    "title_canon_sha256": "98feaa482a7634aa20f4acf8b9e7c3862c77fb0975be1ebbf4554b77ed014b48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.10276",
    "kind": "arxiv",
    "version": 2
  }
}