Pith Number

pith:ZPOSVVE3

pith:2018:ZPOSVVE3F5QDFHENR6QCAO2VJN

not attested not anchored not stored refs pending

A methodology to compute the territorial productivity of scientists: The case of Italy

Ciriaco Andrea D'Angelo, Giovanni Abramo

arxiv:1810.13341 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{ZPOSVVE3F5QDFHENR6QCAO2VJN}

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	2026-05-18T00:01:49.622894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbdd2ad49b2f60329c8d8fa0203b554b6660ae8b6c8d300068403d3daedda4d4

Aliases

arxiv: 1810.13341 · arxiv_version: 1810.13341v1 · doi: 10.48550/arxiv.1810.13341 · pith_short_12: ZPOSVVE3F5QD · pith_short_16: ZPOSVVE3F5QDFHEN · pith_short_8: ZPOSVVE3

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/ZPOSVVE3F5QDFHENR6QCAO2VJN \
  | 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: cbdd2ad49b2f60329c8d8fa0203b554b6660ae8b6c8d300068403d3daedda4d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b69deffa37f51d7fcb94384f58ade0173ac9b8ea3577af5d077cadcfdbf489ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-31T15:32:51Z",
    "title_canon_sha256": "82d8aef16dd4ec44f3aa1def8638ffa908381f7a146d1e2c60a59fed73133406"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13341",
    "kind": "arxiv",
    "version": 1
  }
}