Pith Number

pith:QLEJK4DB

pith:2019:QLEJK4DB5VKY37WVZJ6FL74XTE

not attested not anchored not stored refs pending

Universal Lemmatizer: A Sequence to Sequence Model for Lemmatizing Universal Dependencies Treebanks

Filip Ginter, Jenna Kanerva, Tapio Salakoski

arxiv:1902.00972 v2 · 2019-02-03 · 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{QLEJK4DB5VKY37WVZJ6FL74XTE}

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	2026-07-05T00:55:16.492676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82c8957061ed558dfed5ca7c55ff9799106f180b6064abd518e408e0bfdd8f3b

Aliases

arxiv: 1902.00972 · arxiv_version: 1902.00972v2 · doi: 10.48550/arxiv.1902.00972 · pith_short_12: QLEJK4DB5VKY · pith_short_16: QLEJK4DB5VKY37WV · pith_short_8: QLEJK4DB

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/QLEJK4DB5VKY37WVZJ6FL74XTE \
  | 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: 82c8957061ed558dfed5ca7c55ff9799106f180b6064abd518e408e0bfdd8f3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3344c2f6c3dbf898e4a9a07f251a5427da0d06e6379d840485d25701469c216",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-02-03T21:38:29Z",
    "title_canon_sha256": "1006990abf97ce12bbf6ef9988d6dc5dcfee20785332ae5a3b4b31d176531131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00972",
    "kind": "arxiv",
    "version": 2
  }
}