Pith Number

pith:Q3FD53U7

pith:2019:Q3FD53U7PAZUDQCF7FN7M3CRUR

not attested not anchored not stored refs pending

An Argument-Marker Model for Syntax-Agnostic Proto-Role Labeling

Anette Frank, Juri Opitz

arxiv:1902.01349 v2 · 2019-02-04 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q3FD53U7PAZUDQCF7FN7M3CRUR}

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	2026-05-17T23:48:45.132798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86ca3eee9f783341c045f95bf66c51a46c56451e7c4ed01fa56b4a790e1eb6dc

Aliases

arxiv: 1902.01349 · arxiv_version: 1902.01349v2 · doi: 10.48550/arxiv.1902.01349 · pith_short_12: Q3FD53U7PAZU · pith_short_16: Q3FD53U7PAZUDQCF · pith_short_8: Q3FD53U7

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/Q3FD53U7PAZUDQCF7FN7M3CRUR \
  | 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: 86ca3eee9f783341c045f95bf66c51a46c56451e7c4ed01fa56b4a790e1eb6dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb8b1d7facabbf9f123ee0fbd365262d846467b671764df9fac74acd69d39122",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-02-04T18:11:36Z",
    "title_canon_sha256": "8971bbd2e89a8d935387ee965585b1bdf694f06fde733855a811c575678c80e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01349",
    "kind": "arxiv",
    "version": 2
  }
}