Pith Number

pith:3TYWLHKV

pith:2012:3TYWLHKVLAOTW5QS5L7ZFKPTIO

not attested not anchored not stored refs pending

Web Data Extraction, Applications and Techniques: A Survey

Emilio Ferrara, Giacomo Fiumara, Pasquale De Meo, Robert Baumgartner

arxiv:1207.0246 v4 · 2012-07-01 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TYWLHKVLAOTW5QS5L7ZFKPTIO}

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	2026-05-18T00:49:35.450138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcf1659d55581d3b7612eaff92a9f3439e229c924aee17a089a00e886e3f2054

Aliases

arxiv: 1207.0246 · arxiv_version: 1207.0246v4 · doi: 10.48550/arxiv.1207.0246 · pith_short_12: 3TYWLHKVLAOT · pith_short_16: 3TYWLHKVLAOTW5QS · pith_short_8: 3TYWLHKV

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/3TYWLHKVLAOTW5QS5L7ZFKPTIO \
  | 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: dcf1659d55581d3b7612eaff92a9f3439e229c924aee17a089a00e886e3f2054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8bca7a6f5e70494b71cad9de0633f78f6a89da3e9e3d92e5131e2411b823600",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-07-01T21:14:39Z",
    "title_canon_sha256": "dae933757c4980ba50e18989ba6deb833eca6351bad9db74917011cfe9a502fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0246",
    "kind": "arxiv",
    "version": 4
  }
}