Pith Number

pith:2WLVQHWM

pith:2018:2WLVQHWMZU457CKWYFIBUCXVTO

not attested not anchored not stored refs pending

When Politicians Talk About Politics: Identifying Political Tweets of Brazilian Congressmen

Jos\'e Ant\^onio. G. Pinho, Lucas S. Oliveira, Marcelo S. Amaral, Pedro O. S. Vaz de Melo

arxiv:1805.01589 v1 · 2018-05-04 · cs.SI · 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{2WLVQHWMZU457CKWYFIBUCXVTO}

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	2026-05-18T00:16:47.371008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d597581ecccd39df8956c1501a0af59ba077c65d5443bb6204a66bbdfe5d8a26

Aliases

arxiv: 1805.01589 · arxiv_version: 1805.01589v1 · doi: 10.48550/arxiv.1805.01589 · pith_short_12: 2WLVQHWMZU45 · pith_short_16: 2WLVQHWMZU457CKW · pith_short_8: 2WLVQHWM

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/2WLVQHWMZU457CKWYFIBUCXVTO \
  | 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: d597581ecccd39df8956c1501a0af59ba077c65d5443bb6204a66bbdfe5d8a26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e321ae6ec0757e238198ad8116bad523611722170631c1ae00032e19e2eb09a9",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-05-04T02:26:21Z",
    "title_canon_sha256": "35bbf8fac32082d67f59541147bd0880f115e3787db8f0f90853eca69d1b4645"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01589",
    "kind": "arxiv",
    "version": 1
  }
}