Pith Number

pith:M3CWRX22

pith:2015:M3CWRX225QHCHZLG644TIGBPDF

not attested not anchored not stored refs pending

Utility-Theoretic Ranking for Semi-Automated Text Classification

Andrea Esuli, Fabrizio Sebastiani, Giacomo Berardi

arxiv:1503.00491 v1 · 2015-03-02 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3CWRX225QHCHZLG644TIGBPDF}

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	2026-07-05T03:15:24.376963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66c568df5aec0e23e566f73934182f19489b6d1da37b694cea7b95b2557f8029

Aliases

arxiv: 1503.00491 · arxiv_version: 1503.00491v1 · doi: 10.48550/arxiv.1503.00491 · pith_short_12: M3CWRX225QHC · pith_short_16: M3CWRX225QHCHZLG · pith_short_8: M3CWRX22

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/M3CWRX225QHCHZLG644TIGBPDF \
  | 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: 66c568df5aec0e23e566f73934182f19489b6d1da37b694cea7b95b2557f8029

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "717dad0b15255bd13402d7d1e1527141acbd0c99e54c31685aaa201112608727",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-03-02T12:09:23Z",
    "title_canon_sha256": "36d84b308cc1c0333806e07d38303f376d03bb517242a5e4b9ff6d5c848210a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00491",
    "kind": "arxiv",
    "version": 1
  }
}