Pith Number

pith:MV6G4YOZ

pith:2021:MV6G4YOZJ45TOHAVCVBYLNPF5U

not attested not anchored not stored refs pending

Clinical Named Entity Recognition using Contextualized Token Representations

Calvin Chen, Chelsea Ju, J. Harry Caufield, Kai-Wei Chang, Kevin Shih, Peipei Ping, Wei Wang, Yichao Zhou, Yizhou Sun

arxiv:2106.12608 v1 · 2021-06-23 · cs.CL · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MV6G4YOZJ45TOHAVCVBYLNPF5U}

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	2026-07-05T02:52:04.106855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

657c6e61d94f3b371c15154385b5e5ed07ff13308ccd844a15de3550bad4672c

Aliases

arxiv: 2106.12608 · arxiv_version: 2106.12608v1 · doi: 10.48550/arxiv.2106.12608 · pith_short_12: MV6G4YOZJ45T · pith_short_16: MV6G4YOZJ45TOHAV · pith_short_8: MV6G4YOZ

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/MV6G4YOZJ45TOHAVCVBYLNPF5U \
  | 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: 657c6e61d94f3b371c15154385b5e5ed07ff13308ccd844a15de3550bad4672c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d433f9c52792e5474befbfc3ae9b5252efc235b3719f327974d41f22f4f54a54",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-06-23T18:12:58Z",
    "title_canon_sha256": "d96bd118dd20c6b61a3e6e01ef877f35377295e442937b32deec7ae250e42a74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.12608",
    "kind": "arxiv",
    "version": 1
  }
}