Pith Number

pith:PL4SUXNK

pith:2018:PL4SUXNKOH4KGQ74N6BRYRI5XY

not attested not anchored not stored refs pending

The impact of unproductive and top researchers on overall university research performance

Ciriaco Andrea D'Angelo, Giovanni Abramo, Tindaro Cicero

arxiv:1810.13283 v1 · 2018-10-31 · 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{PL4SUXNKOH4KGQ74N6BRYRI5XY}

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	2026-05-18T00:01:49.789365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7af92a5daa71f8a343fc6f831c451dbe05a7ed79ae578535507828f0ffc1b658

Aliases

arxiv: 1810.13283 · arxiv_version: 1810.13283v1 · doi: 10.48550/arxiv.1810.13283 · pith_short_12: PL4SUXNKOH4K · pith_short_16: PL4SUXNKOH4KGQ74 · pith_short_8: PL4SUXNK

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/PL4SUXNKOH4KGQ74N6BRYRI5XY \
  | 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: 7af92a5daa71f8a343fc6f831c451dbe05a7ed79ae578535507828f0ffc1b658

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17ae6bb165b35f936a6ad85d5b0d6a515afa73cd319dc9df7c10319a3cd76ef2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-31T13:44:57Z",
    "title_canon_sha256": "0b92b45c68c50e4f47d02f3dc1231137b570f4c98a908b2423e4c9da6c7d437e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13283",
    "kind": "arxiv",
    "version": 1
  }
}