Pith Number

pith:7D2EZXXU

pith:2025:7D2EZXXUW6EODEEUTJVCZUJENB

not attested not anchored not stored refs pending

Political Leaning and Politicalness Classification of Texts

(2) Kempelen Institute of Intelligent Technologies, Bratislava, Czechia, Economics, Jakub Simko (2) ((1) DELTA High school of computer science, Matous Volf (1), Pardubice, Slovakia)

arxiv:2507.13913 v1 · 2025-07-18 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7D2EZXXUW6EODEEUTJVCZUJENB}

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	2026-07-05T11:39:25.425978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8f44cdef4b788e190949a6a2cd124686e81a71004f923fc2cd96013e54f95d2

Aliases

arxiv: 2507.13913 · arxiv_version: 2507.13913v1 · doi: 10.48550/arxiv.2507.13913 · pith_short_12: 7D2EZXXUW6EO · pith_short_16: 7D2EZXXUW6EODEEU · pith_short_8: 7D2EZXXU

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/7D2EZXXUW6EODEEUTJVCZUJENB \
  | 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: f8f44cdef4b788e190949a6a2cd124686e81a71004f923fc2cd96013e54f95d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eca4ad073d91b07417addc914d374c5f446870284d72915b8010b886f6f5fc11",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-18T13:44:30Z",
    "title_canon_sha256": "71637596d193d98685ec665e74dc6187080a467eec4d1db3cab05b724bee0cb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13913",
    "kind": "arxiv",
    "version": 1
  }
}