Pith Number

pith:7VWGCJR4

pith:2017:7VWGCJR4ESLT27FQDJSZAQMKIE

not attested not anchored not stored refs pending

Discovering Political Topics in Facebook Discussion threads with Graph Contextualization

Chris Wells, Karl Rohe, Karolina Koc-Michalska, Marie Poux-Berthe, Yilin Zhang

arxiv:1708.06872 v3 · 2017-08-23 · stat.AP · cs.CL · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7VWGCJR4ESLT27FQDJSZAQMKIE}

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	2026-05-18T00:20:16.847522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd6c61263c24973d7cb01a6590418a41110360f149e051b2b816eb0026ddf0d9

Aliases

arxiv: 1708.06872 · arxiv_version: 1708.06872v3 · doi: 10.48550/arxiv.1708.06872 · pith_short_12: 7VWGCJR4ESLT · pith_short_16: 7VWGCJR4ESLT27FQ · pith_short_8: 7VWGCJR4

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/7VWGCJR4ESLT27FQDJSZAQMKIE \
  | 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: fd6c61263c24973d7cb01a6590418a41110360f149e051b2b816eb0026ddf0d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a11b9fa3dc2af9cab6a56201b97420e36a5d8b3a2b27d38f6f5631529d0d6f93",
    "cross_cats_sorted": [
      "cs.CL",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2017-08-23T02:42:59Z",
    "title_canon_sha256": "ec8a8bda06ad4da6808dd20640597454c8993f9ee97af61d39275c49d459e680"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06872",
    "kind": "arxiv",
    "version": 3
  }
}