Pith Number

pith:URGMK7VH

pith:2018:URGMK7VHZLL6KCB244IWCMINEU

not attested not anchored not stored refs pending

Quootstrap: Scalable Unsupervised Extraction of Quotation-Speaker Pairs from Large News Corpora via Bootstrapping

Dario Pavllo, Robert West, Tiziano Piccardi

arxiv:1804.02525 v1 · 2018-04-07 · cs.SI · cs.CL · 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{URGMK7VHZLL6KCB244IWCMINEU}

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	2026-05-18T00:18:59.206701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a44cc57ea7cad7e5083ae71161310d253be49df221681edc8973dd6736942eea

Aliases

arxiv: 1804.02525 · arxiv_version: 1804.02525v1 · doi: 10.48550/arxiv.1804.02525 · pith_short_12: URGMK7VHZLL6 · pith_short_16: URGMK7VHZLL6KCB2 · pith_short_8: URGMK7VH

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/URGMK7VHZLL6KCB244IWCMINEU \
  | 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: a44cc57ea7cad7e5083ae71161310d253be49df221681edc8973dd6736942eea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e35c68004cc4d207fc10d6c82786f8c0f8c17842c41f5a85b546768cc0dba64",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-04-07T07:50:50Z",
    "title_canon_sha256": "cd56d42a19a802510ada4a579b81bd0797c0238d9e4b3b00d3abd30fad9f56f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02525",
    "kind": "arxiv",
    "version": 1
  }
}