Pith Number

pith:PQO4RAFK

pith:2019:PQO4RAFKJ4XIJKBQCMFEFGTUDE

not attested not anchored not stored refs pending

Specializing Unsupervised Pretraining Models for Word-Level Semantic Similarity

Anna Korhonen, Anne Lauscher, Edoardo Maria Ponti, Goran Glava\v{s}, Ivan Vuli\'c

arxiv:1909.02339 v2 · 2019-09-05 · 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{PQO4RAFKJ4XIJKBQCMFEFGTUDE}

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	2026-07-05T00:55:58.762075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c1dc880aa4f2e84a830130a429a741926efd75193dae1070a2b28431a4c8a57

Aliases

arxiv: 1909.02339 · arxiv_version: 1909.02339v2 · doi: 10.48550/arxiv.1909.02339 · pith_short_12: PQO4RAFKJ4XI · pith_short_16: PQO4RAFKJ4XIJKBQ · pith_short_8: PQO4RAFK

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/PQO4RAFKJ4XIJKBQCMFEFGTUDE \
  | 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: 7c1dc880aa4f2e84a830130a429a741926efd75193dae1070a2b28431a4c8a57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f46348a572687ebf731b7a502821abe0a7612a74582cfafbe96d4ad26ee782cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-09-05T11:49:40Z",
    "title_canon_sha256": "86c645b1a195691265556cd3da599e3764653d0ec72535aa388950a084b88b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02339",
    "kind": "arxiv",
    "version": 2
  }
}