Pith Number

pith:KPGEI36M

pith:2019:KPGEI36MZSTLLZX4EBFIHDQ7CR

not attested not anchored not stored refs pending

Comparison of research productivity of Italian and Norwegian professors and universities

Ciriaco Andrea D'Angelo, Dag W. Aksnes, Giovanni Abramo

arxiv:1907.02043 v1 · 2019-07-03 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPGEI36MZSTLLZX4EBFIHDQ7CR}

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	2026-05-17T23:41:31.785727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53cc446fcccca6b5e6fc204a838e1f14400e9c207cbdc3fc9fe4ba6aab5165f1

Aliases

arxiv: 1907.02043 · arxiv_version: 1907.02043v1 · doi: 10.48550/arxiv.1907.02043 · pith_short_12: KPGEI36MZSTL · pith_short_16: KPGEI36MZSTLLZX4 · pith_short_8: KPGEI36M

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/KPGEI36MZSTLLZX4EBFIHDQ7CR \
  | 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: 53cc446fcccca6b5e6fc204a838e1f14400e9c207cbdc3fc9fe4ba6aab5165f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ccb942316617bf40e6612956fbd34557a28deb89b7d1812f7dcda260cd00863",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2019-07-03T17:20:31Z",
    "title_canon_sha256": "f937ee02248b130a402e46da3063833b62560597e523e55d9e6a1d8a2a3358bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02043",
    "kind": "arxiv",
    "version": 1
  }
}