Pith Number

pith:3O3V4GUF

pith:2019:3O3V4GUFQCDH35FMECMJPXLITI

not attested not anchored not stored refs pending

Developing and Using Special-Purpose Lexicons for Cohort Selection from Clinical Notes

Ashok Prakash, Chitta Baral, Murthy Devarakonda, Saadat Anwar, Samarth Rawal, Sidharth Kulkarni, Soumya Adhya

arxiv:1902.09674 v1 · 2019-02-26 · 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{3O3V4GUFQCDH35FMECMJPXLITI}

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	2026-05-17T23:52:35.606257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbb75e1a8580867df4ac209897dd689a2e03c96992c2e2410a36ed2a1bc0ae9d

Aliases

arxiv: 1902.09674 · arxiv_version: 1902.09674v1 · doi: 10.48550/arxiv.1902.09674 · pith_short_12: 3O3V4GUFQCDH · pith_short_16: 3O3V4GUFQCDH35FM · pith_short_8: 3O3V4GUF

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/3O3V4GUFQCDH35FMECMJPXLITI \
  | 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: dbb75e1a8580867df4ac209897dd689a2e03c96992c2e2410a36ed2a1bc0ae9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c4634adc27715bff44c5c9f0b8762ff95ef18239eef06b88addec987011a8f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-02-26T00:45:56Z",
    "title_canon_sha256": "54badb466d16b6e299ec1ffc24c86061f9a208d8a95cb729ed5539d024c2dc18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09674",
    "kind": "arxiv",
    "version": 1
  }
}