Pith Number

pith:HFVAUVMS

pith:2019:HFVAUVMSWYT44OMDPXC7UXN2SH

not attested not anchored not stored refs pending

Variational Pretraining for Semi-supervised Text Classification

Dallas Card, Noah A. Smith, Suchin Gururangan, Tam Dang

arxiv:1906.02242 v1 · 2019-06-05 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFVAUVMSWYT44OMDPXC7UXN2SH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:44:01.829273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

396a0a5592b627ce39837dc5fa5dba91ce78d64de77d69067f999fd0c1f92c13

Aliases

arxiv: 1906.02242 · arxiv_version: 1906.02242v1 · doi: 10.48550/arxiv.1906.02242 · pith_short_12: HFVAUVMSWYT4 · pith_short_16: HFVAUVMSWYT44OMD · pith_short_8: HFVAUVMS

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/HFVAUVMSWYT44OMDPXC7UXN2SH \
  | 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: 396a0a5592b627ce39837dc5fa5dba91ce78d64de77d69067f999fd0c1f92c13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58675995fc212e3be16bba476c07d713958186dbaa27a452c44f4c2843312298",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-06-05T18:40:37Z",
    "title_canon_sha256": "6607e57b7761e190d93d87d30497eab52aad12947a8aa18147cb3e422f21ee13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02242",
    "kind": "arxiv",
    "version": 1
  }
}