Pith Number

pith:EVMKLXWQ

pith:2013:EVMKLXWQCPCR57FJPMD3T4YWGO

not attested not anchored not stored refs pending

NRC-Canada: Building the State-of-the-Art in Sentiment Analysis of Tweets

Saif M. Mohammad, Svetlana Kiritchenko, Xiaodan Zhu

arxiv:1308.6242 v1 · 2013-08-28 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVMKLXWQCPCR57FJPMD3T4YWGO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:14:48.749651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2558a5ded013c51efca97b07b9f31633a7e2e372967fc0f37371aa7b82811625

Aliases

arxiv: 1308.6242 · arxiv_version: 1308.6242v1 · doi: 10.48550/arxiv.1308.6242 · pith_short_12: EVMKLXWQCPCR · pith_short_16: EVMKLXWQCPCR57FJ · pith_short_8: EVMKLXWQ

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/EVMKLXWQCPCR57FJPMD3T4YWGO \
  | 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: 2558a5ded013c51efca97b07b9f31633a7e2e372967fc0f37371aa7b82811625

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66340774d65d92b35e8361df1a1898dd49faffd6cead632369e32a95acaf8fc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-08-28T18:23:03Z",
    "title_canon_sha256": "dd88d1d69cfc3998831d4019813cb5f159a42b981e62cd24dbef8c39e5c0931c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.6242",
    "kind": "arxiv",
    "version": 1
  }
}