Pith Number

pith:Z27HGRJU

pith:2017:Z27HGRJU34UXPK7IYSLSCNIOPT

not attested not anchored not stored refs pending

An Interactive Tool for Natural Language Processing on Clinical Text

Gaurav Trivedi, Harry Hochheiser, Janyce Wiebe, Phuong Pham, Rebecca Hwa, Wendy Chapman

arxiv:1707.01890 v2 · 2017-07-06 · cs.HC · 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{Z27HGRJU34UXPK7IYSLSCNIOPT}

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	2026-05-18T00:40:45.893009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cebe734534df2977abe8c49721350e7cd5a0205050f140599ac67418a30f686d

Aliases

arxiv: 1707.01890 · arxiv_version: 1707.01890v2 · doi: 10.48550/arxiv.1707.01890 · pith_short_12: Z27HGRJU34UX · pith_short_16: Z27HGRJU34UXPK7I · pith_short_8: Z27HGRJU

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/Z27HGRJU34UXPK7IYSLSCNIOPT \
  | 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: cebe734534df2977abe8c49721350e7cd5a0205050f140599ac67418a30f686d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00ac87cd3a5e776b3b5dc2d6c5b6813be7fc30b01bbfe7f32d8714971d894958",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2017-07-06T17:44:15Z",
    "title_canon_sha256": "3b9cae0e7da4f9e6a11aa9c104876d093b17948c59af2eabb086dbb62d5a87a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01890",
    "kind": "arxiv",
    "version": 2
  }
}