Pith Number

pith:45QPBUBC

pith:2022:45QPBUBCFLRYJ5ETDHEWXHYMZ6

not attested not anchored not stored refs pending

Multi-label topic classification for COVID-19 literature with Bioformer

Kai Wang, Li Fang

arxiv:2204.06758 v1 · 2022-04-14 · 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{45QPBUBCFLRYJ5ETDHEWXHYMZ6}

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	2026-07-05T04:14:45.875679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e760f0d0222ae384f49319c96b9f0ccf881aeafd44b2e38dd86ed4b2a9d1f224

Aliases

arxiv: 2204.06758 · arxiv_version: 2204.06758v1 · doi: 10.48550/arxiv.2204.06758 · pith_short_12: 45QPBUBCFLRY · pith_short_16: 45QPBUBCFLRYJ5ET · pith_short_8: 45QPBUBC

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/45QPBUBCFLRYJ5ETDHEWXHYMZ6 \
  | 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: e760f0d0222ae384f49319c96b9f0ccf881aeafd44b2e38dd86ed4b2a9d1f224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "582e8f069cedb2fdd7d1b9e0108784eecb90ca260454b859659b05e8d9eeab41",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-04-14T05:24:54Z",
    "title_canon_sha256": "6885efc1e441a1867c0ee0d6c109e42ccbe4921b42ef1c72e7248eaef07f1bf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.06758",
    "kind": "arxiv",
    "version": 1
  }
}