Pith Number

pith:DP25UTHR

pith:2016:DP25UTHRSAKDGRRYSFSBFC6Q4A

not attested not anchored not stored refs pending

Viewpoint and Topic Modeling of Current Events

Cheng Zhang, Jens Lagergren, Jussi Karlgren, Kerry Zhang

arxiv:1608.04089 v1 · 2016-08-14 · cs.CL · cs.IR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DP25UTHRSAKDGRRYSFSBFC6Q4A}

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	2026-05-18T01:09:04.292717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bf5da4cf190143346389164128bd0e004f1789be4aed884b57ce48b62a24618

Aliases

arxiv: 1608.04089 · arxiv_version: 1608.04089v1 · doi: 10.48550/arxiv.1608.04089 · pith_short_12: DP25UTHRSAKD · pith_short_16: DP25UTHRSAKDGRRY · pith_short_8: DP25UTHR

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/DP25UTHRSAKDGRRYSFSBFC6Q4A \
  | 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: 1bf5da4cf190143346389164128bd0e004f1789be4aed884b57ce48b62a24618

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1434d068627df1d1926cf66eb9086f0b7baa21e0dc19b376e13da65d17e618e",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-08-14T11:36:52Z",
    "title_canon_sha256": "b6aaba4c38dc9f5a3067122ee18f71a0498c0e7bd347a6c829fe7a5096e7d73c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04089",
    "kind": "arxiv",
    "version": 1
  }
}