Pith Number

pith:BITRIHL3

pith:2026:BITRIHL3A23ZGWD6ZAWQY2AO3U

not attested not anchored not stored refs pending

A Cascaded Unsupervised-Supervised NLP Pipeline for Detecting Accusatory Language in Public Procurement

Bryan Torres, Carla Parra, Daniel Riofr\'io, Felipe Grijalva, Jos\'e Vega-S\'anchez, Karen Rosero, Nathaly Orozco

arxiv:2608.12269 v1 · 2026-08-12 · 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{BITRIHL3A23ZGWD6ZAWQY2AO3U}

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	2026-08-13T01:30:40.138406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a27141d7b06b793587ec82d0c680edd23a50a0d1ede7fa20b2894405be33653

Aliases

arxiv: 2608.12269 · arxiv_version: 2608.12269v1 · doi: 10.48550/arxiv.2608.12269 · pith_short_12: BITRIHL3A23Z · pith_short_16: BITRIHL3A23ZGWD6 · pith_short_8: BITRIHL3

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/BITRIHL3A23ZGWD6ZAWQY2AO3U \
  | 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: 0a27141d7b06b793587ec82d0c680edd23a50a0d1ede7fa20b2894405be33653

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd0a45330cdc8fd6311d08d430c439ab5b6332e464963d344c584b1fc30e81c2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-08-12T17:09:14Z",
    "title_canon_sha256": "75adb97b1cbfdffb354f40dd90b84d8ebc760df65c5d534d9e9a2d041d867497"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.12269",
    "kind": "arxiv",
    "version": 1
  }
}