Pith Number

pith:GAO4FOOQ

pith:2018:GAO4FOOQ5PJ3WPJMJVRU7SPIVU

not attested not anchored not stored refs pending

The impact of air transport availability on research collaboration: A case study of four universities

Adam Ploszaj, Katy Borner, Xiaoran Yan

arxiv:1811.02106 v1 · 2018-11-06 · econ.GN · q-fin.EC · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GAO4FOOQ5PJ3WPJMJVRU7SPIVU}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:01:25.025573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

301dc2b9d0ebd3bb3d2c4d634fc9e8ad3df08c74e3bf1169f5c5c4e5a477b12d

Aliases

arxiv: 1811.02106 · arxiv_version: 1811.02106v1 · doi: 10.48550/arxiv.1811.02106 · pith_short_12: GAO4FOOQ5PJ3 · pith_short_16: GAO4FOOQ5PJ3WPJM · pith_short_8: GAO4FOOQ

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/GAO4FOOQ5PJ3WPJMJVRU7SPIVU \
  | 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: 301dc2b9d0ebd3bb3d2c4d634fc9e8ad3df08c74e3bf1169f5c5c4e5a477b12d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "addf3ffe824ea2a943bd215ba309d4ef109042af92500e0286e3a5a68370cfcd",
    "cross_cats_sorted": [
      "q-fin.EC",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2018-11-06T01:05:38Z",
    "title_canon_sha256": "d71055f2ff1252c5bc5c56c1da0d19ea6befd9543f39c86dfd7c3c5a6b61dc8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02106",
    "kind": "arxiv",
    "version": 1
  }
}