Pith Number

pith:HXLOA3VE

pith:2020:HXLOA3VE6K6SC3OBEPUR4NPHPJ

not attested not anchored not stored refs pending

Public discourse and sentiment during the COVID-19 pandemic: using Latent Dirichlet Allocation for topic modeling on Twitter

Chen Chen, Chengda Zheng, Jia Xue, Junxiang Chen, Sijia Li, Tingshao Zhu

arxiv:2005.08817 v3 · 2020-05-18 · cs.SI · cs.CL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HXLOA3VE6K6SC3OBEPUR4NPHPJ}

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	2026-07-05T02:09:39.785715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3dd6e06ea4f2bd216dc123e91e35e77a56be2bc50416ae5ccfed0fd46874d23b

Aliases

arxiv: 2005.08817 · arxiv_version: 2005.08817v3 · doi: 10.48550/arxiv.2005.08817 · pith_short_12: HXLOA3VE6K6S · pith_short_16: HXLOA3VE6K6SC3OB · pith_short_8: HXLOA3VE

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/HXLOA3VE6K6SC3OBEPUR4NPHPJ \
  | 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: 3dd6e06ea4f2bd216dc123e91e35e77a56be2bc50416ae5ccfed0fd46874d23b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b7d60be93c76d4bec370cc7a23cbf329c6eaadc4422593a5367127b03b85099",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2020-05-18T15:50:38Z",
    "title_canon_sha256": "24964fb6c811e8e468f995b59bee6b3fb94b359a585039038b2fdec74c683097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.08817",
    "kind": "arxiv",
    "version": 3
  }
}