Pith Number

pith:H4REPWC4

pith:2019:H4REPWC4ZC4BLTDZW5R3VKR6ID

not attested not anchored not stored refs pending

Interactive Topic Modeling with Anchor Words

Christopher Tosh, Sanjoy Dasgupta, Stefanos Poulis

arxiv:1907.04919 v1 · 2019-06-18 · cs.IR · cs.LG · 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{H4REPWC4ZC4BLTDZW5R3VKR6ID}

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	2026-05-17T23:40:54.465501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f2247d85cc8b815cc79b763baaa3e40eb782be9ed2eb9ff0274b2977c4439ef

Aliases

arxiv: 1907.04919 · arxiv_version: 1907.04919v1 · doi: 10.48550/arxiv.1907.04919 · pith_short_12: H4REPWC4ZC4B · pith_short_16: H4REPWC4ZC4BLTDZ · pith_short_8: H4REPWC4

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/H4REPWC4ZC4BLTDZW5R3VKR6ID \
  | 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: 3f2247d85cc8b815cc79b763baaa3e40eb782be9ed2eb9ff0274b2977c4439ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b106e17c48a159ac6ee7a513de8048a4508da6e408055e49d924af8c3fad22a",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-06-18T23:42:23Z",
    "title_canon_sha256": "50052879ba7020794851bd175bf22ab361e55947b0b298c2a0b43f38111eb758"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04919",
    "kind": "arxiv",
    "version": 1
  }
}