Pith Number

pith:NIYGDQ6O

pith:2013:NIYGDQ6OVDZLUR5NU6EPGJYLSN

not attested not anchored not stored refs pending

Sentiment Analysis in the News

Alexandra Balahur, Bruno Pouliquen, Erik van der Goot, Jenya Belyaeva, Matina Halkia, Mijail Kabadjov, Ralf Steinberger, Vanni Zavarella

arxiv:1309.6202 v1 · 2013-09-24 · 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{NIYGDQ6OVDZLUR5NU6EPGJYLSN}

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	2026-05-18T03:12:23.543861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a3061c3cea8f2ba47ada788f3270b934838a26d3aa29da2b5deb18642ec27ef

Aliases

arxiv: 1309.6202 · arxiv_version: 1309.6202v1 · doi: 10.48550/arxiv.1309.6202 · pith_short_12: NIYGDQ6OVDZL · pith_short_16: NIYGDQ6OVDZLUR5N · pith_short_8: NIYGDQ6O

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/NIYGDQ6OVDZLUR5NU6EPGJYLSN \
  | 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: 6a3061c3cea8f2ba47ada788f3270b934838a26d3aa29da2b5deb18642ec27ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21cf2402c6eb9da5835c73b9960fb512f3af70dc2bc09a8172056d78ffa0b54c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-09-24T15:11:43Z",
    "title_canon_sha256": "247fd17822e580401295237f7be874e7991d5b456c330b63aa4b06970bb5e558"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6202",
    "kind": "arxiv",
    "version": 1
  }
}