Pith Number

pith:LFEFHZ5L

pith:2018:LFEFHZ5LFMZ2VH6XLREFG7SPEW

not attested not anchored not stored refs pending

A new approach to measure the scientific strengths of territories

Ciriaco Andrea D'Angelo, Flavia Di Costa, Giovanni Abramo

arxiv:1810.13345 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{LFEFHZ5LFMZ2VH6XLREFG7SPEW}

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	2026-05-18T00:01:49.607711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

594853e7ab2b33aa9fd75c48537e4f258f99c22920b297b8fe51a36473c43f90

Aliases

arxiv: 1810.13345 · arxiv_version: 1810.13345v1 · doi: 10.48550/arxiv.1810.13345 · pith_short_12: LFEFHZ5LFMZ2 · pith_short_16: LFEFHZ5LFMZ2VH6X · pith_short_8: LFEFHZ5L

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/LFEFHZ5LFMZ2VH6XLREFG7SPEW \
  | 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: 594853e7ab2b33aa9fd75c48537e4f258f99c22920b297b8fe51a36473c43f90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4620c64cca00734e4edcaacea8f3b262bcee58ac5ae1c9cdad57c1eb8419770",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-31T15:35:08Z",
    "title_canon_sha256": "2b5c6c11e5ce25a2eacb3b872032c8c3fd6c1c26414e192d97fe3cefc16e4c87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13345",
    "kind": "arxiv",
    "version": 1
  }
}