Pith Number

pith:7U5OP2WR

pith:2019:7U5OP2WRNDRF6U72FRKWJ4EDTY

not attested not anchored not stored refs pending

Who wrote this book? A challenge for e-commerce

B\'eranger Dumont, Ghiles Sidi Said, Quoc-Tien Au, Simona Maggio

arxiv:1905.01973 v1 · 2019-04-19 · cs.CL · cs.IR · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7U5OP2WRNDRF6U72FRKWJ4EDTY}

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	2026-05-17T23:46:56.825432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd3ae7ead168e25f53fa2c5564f0839e26bbfcffca56a5501b9696b1ac106355

Aliases

arxiv: 1905.01973 · arxiv_version: 1905.01973v1 · doi: 10.48550/arxiv.1905.01973 · pith_short_12: 7U5OP2WRNDRF · pith_short_16: 7U5OP2WRNDRF6U72 · pith_short_8: 7U5OP2WR

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/7U5OP2WRNDRF6U72FRKWJ4EDTY \
  | 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: fd3ae7ead168e25f53fa2c5564f0839e26bbfcffca56a5501b9696b1ac106355

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f81042f2c96e84d4a54f85cf19aa49fdaa11bd69832c6984a040ae060226410f",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-19T10:13:07Z",
    "title_canon_sha256": "8a2dd69f89f862dbd75681edc22e02c47ca336ef38c87834792b47b2e74be2c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01973",
    "kind": "arxiv",
    "version": 1
  }
}