Pith Number

pith:L3GPRJ5A

pith:2009:L3GPRJ5AFITMWI7XU3IST6IAKD

not attested not anchored not stored refs pending

Modeling public mood and emotion: Twitter sentiment and socio-economic phenomena

Alberto Pepe, Huina Mao, Johan Bollen

arxiv:0911.1583 v1 · 2009-11-09 · 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{L3GPRJ5AFITMWI7XU3IST6IAKD}

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	2026-05-18T04:25:39.262251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5eccf8a7a02a26cb23f7a6d129f90050e3e9cb470039e4438897b58a60216e63

Aliases

arxiv: 0911.1583 · arxiv_version: 0911.1583v1 · doi: 10.48550/arxiv.0911.1583 · pith_short_12: L3GPRJ5AFITM · pith_short_16: L3GPRJ5AFITMWI7X · pith_short_8: L3GPRJ5A

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/L3GPRJ5AFITMWI7XU3IST6IAKD \
  | 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: 5eccf8a7a02a26cb23f7a6d129f90050e3e9cb470039e4438897b58a60216e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "233358450d5f256400cfc6e00f8bd5c813ea1add98b703e1b8b28e2d623548ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2009-11-09T04:07:03Z",
    "title_canon_sha256": "64c455d10a70d69170e2f1529be54df7ee923999e38b11e8dee574498664a227"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1583",
    "kind": "arxiv",
    "version": 1
  }
}