Pith Number

pith:HFQQEDIS

pith:2019:HFQQEDISXSETHHFCNS7VQQCLAY

not attested not anchored not stored refs pending

Sentiment Analysis of Czech Texts: An Algorithmic Survey

Erion \c{C}ano, Ond\v{r}ej Bojar

arxiv:1901.02780 v2 · 2019-01-09 · cs.CL · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFQQEDISXSETHHFCNS7VQQCLAY}

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	2026-05-17T23:51:13.879691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3961020d12bc89339ca26cbf58404b062896620280aa4ec8110d37eb378a2897

Aliases

arxiv: 1901.02780 · arxiv_version: 1901.02780v2 · doi: 10.48550/arxiv.1901.02780 · pith_short_12: HFQQEDISXSET · pith_short_16: HFQQEDISXSETHHFC · pith_short_8: HFQQEDIS

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/HFQQEDISXSETHHFCNS7VQQCLAY \
  | 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: 3961020d12bc89339ca26cbf58404b062896620280aa4ec8110d37eb378a2897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e06fa2dfd94e7ace74ca3fd318b33f1ff2210e26fd3f6859c690682fdde3ebf9",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-01-09T15:30:39Z",
    "title_canon_sha256": "8687ca150b58ab0cc0f741b1d4a225f1a88149439a762e0c44fefce1425f50f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02780",
    "kind": "arxiv",
    "version": 2
  }
}