Pith Number

pith:GFJOI27A

pith:2022:GFJOI27AEMOGAT3EHNO2ZYCAI2

not attested not anchored not stored refs pending

BERN2: an advanced neural biomedical named entity recognition and normalization tool

Donghyeon Kim, Jaewoo Kang, Jinhyuk Lee, Minbyul Jeong, Mujeen Sung, Yonghwa Choi

arxiv:2201.02080 v3 · 2022-01-06 · 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{GFJOI27AEMOGAT3EHNO2ZYCAI2}

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	2026-07-05T05:03:50.118976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3152e46be0231c604f643b5dace040468db43b34f9c1a5dae5335099f01b11dd

Aliases

arxiv: 2201.02080 · arxiv_version: 2201.02080v3 · doi: 10.48550/arxiv.2201.02080 · pith_short_12: GFJOI27AEMOG · pith_short_16: GFJOI27AEMOGAT3E · pith_short_8: GFJOI27A

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/GFJOI27AEMOGAT3EHNO2ZYCAI2 \
  | 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: 3152e46be0231c604f643b5dace040468db43b34f9c1a5dae5335099f01b11dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05db1bd2890ca50632f2da6eec177aa0f3666526794c3442ee34e1dcc768c2fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-01-06T14:53:30Z",
    "title_canon_sha256": "3dd184182f6f1b14407c7b894a66268f375cffc8eea17992aff6a98ef563aa56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.02080",
    "kind": "arxiv",
    "version": 3
  }
}