Pith Number

pith:VWG4SIDT

pith:2012:VWG4SIDTQT4PHWAKOEYRDMEJOF

not attested not anchored not stored refs pending

Improving an Hybrid Literary Book Recommendation System through Author Ranking

Bruno Martins, David Martins de Matos, Paula Cristina Vaz, Pavel Calado

arxiv:1203.5324 v1 · 2012-03-23 · cs.IR · 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{VWG4SIDTQT4PHWAKOEYRDMEJOF}

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	2026-05-18T03:59:26.174033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad8dc9207384f8f3d80a713111b089715afe111c24ba98e1d80ba7fc1a5888e5

Aliases

arxiv: 1203.5324 · arxiv_version: 1203.5324v1 · doi: 10.48550/arxiv.1203.5324 · pith_short_12: VWG4SIDTQT4P · pith_short_16: VWG4SIDTQT4PHWAK · pith_short_8: VWG4SIDT

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/VWG4SIDTQT4PHWAKOEYRDMEJOF \
  | 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: ad8dc9207384f8f3d80a713111b089715afe111c24ba98e1d80ba7fc1a5888e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b68b42902c61ac56f2e6ddb6fe5ec99f1ba6acf4c7fa1c5d73e169ee752189e",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-03-23T19:28:25Z",
    "title_canon_sha256": "7c2b8a4c84e3e46fa18d01abf0f7992ec49515a17e856644a43a7be34f304d0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5324",
    "kind": "arxiv",
    "version": 1
  }
}