Pith Number

pith:SPNJOF3S

pith:2018:SPNJOF3SIJE6LIIGPX62FEHYX6

not attested not anchored not stored refs pending

Evaluating university research: same performance indicator, different rankings

Ciriaco Andrea D'Angelo, Giovanni Abramo

arxiv:1810.12732 v1 · 2018-10-30 · 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{SPNJOF3SIJE6LIIGPX62FEHYX6}

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	2026-05-18T00:01:54.305010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93da9717724249e5a1067dfda290f8bf9ae75730c69058bd175d597ad934d2eb

Aliases

arxiv: 1810.12732 · arxiv_version: 1810.12732v1 · doi: 10.48550/arxiv.1810.12732 · pith_short_12: SPNJOF3SIJE6 · pith_short_16: SPNJOF3SIJE6LIIG · pith_short_8: SPNJOF3S

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/SPNJOF3SIJE6LIIGPX62FEHYX6 \
  | 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: 93da9717724249e5a1067dfda290f8bf9ae75730c69058bd175d597ad934d2eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35e7556753d8d9825cd668bc46642b2d7172cb141a03fd91c13630553faea75a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-30T13:48:34Z",
    "title_canon_sha256": "6dbd442748e2dd610d414232fb2e8ab478463ed33d9a9b8a3c8d91f4f66eae03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12732",
    "kind": "arxiv",
    "version": 1
  }
}