Pith Number

pith:T3JN33T6

pith:2025:T3JN33T6IC5MH2W6YVE2EOIZDN

not attested not anchored not stored refs pending

Natural Language Processing tools for Pharmaceutical Manufacturing Information Extraction from Patents

Blair Johnston, Cameron J. Brown, Diego Alvarado-Maldonado

arxiv:2504.20598 v2 · 2025-04-29 · 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{T3JN33T6IC5MH2W6YVE2EOIZDN}

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	2026-07-05T10:56:39.886968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ed2ddee7e40bac3eadec549a239191b680f8c3bdb93701e5551e0a03dda318c

Aliases

arxiv: 2504.20598 · arxiv_version: 2504.20598v2 · doi: 10.48550/arxiv.2504.20598 · pith_short_12: T3JN33T6IC5M · pith_short_16: T3JN33T6IC5MH2W6 · pith_short_8: T3JN33T6

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/T3JN33T6IC5MH2W6YVE2EOIZDN \
  | 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: 9ed2ddee7e40bac3eadec549a239191b680f8c3bdb93701e5551e0a03dda318c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc07e8e928dda1f155c54147efbcbf636d582c0263bd41d92c068c3915902231",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-04-29T09:56:23Z",
    "title_canon_sha256": "55c064adefa0f4b9cbade5c661e19997acdd1ee12b6c78474dfaf4f12b5f1ff6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20598",
    "kind": "arxiv",
    "version": 2
  }
}