Pith Number

pith:S33TZUB4

pith:2018:S33TZUB4KI3NHRG4L3ZDLNGHAZ

not attested not anchored not stored refs pending

Learning Hidden Markov Models from Pairwise Co-occurrences with Application to Topic Modeling

Kejun Huang, Nicholas D. Sidiropoulos, Xiao Fu

arxiv:1802.06894 v2 · 2018-02-19 · cs.CL · cs.LG · eess.SP · 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{S33TZUB4KI3NHRG4L3ZDLNGHAZ}

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	2026-05-18T00:12:58.525040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96f73cd03c5236d3c4dc5ef235b4c70674a4b212e57fc9b5607cbadd0af8d001

Aliases

arxiv: 1802.06894 · arxiv_version: 1802.06894v2 · doi: 10.48550/arxiv.1802.06894 · pith_short_12: S33TZUB4KI3N · pith_short_16: S33TZUB4KI3NHRG4 · pith_short_8: S33TZUB4

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/S33TZUB4KI3NHRG4L3ZDLNGHAZ \
  | 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: 96f73cd03c5236d3c4dc5ef235b4c70674a4b212e57fc9b5607cbadd0af8d001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aca18a48446f4949575d456bcfbd6232d0b58636d83f9fc1e27df793d5531b5",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-02-19T22:33:56Z",
    "title_canon_sha256": "cb51f2a7a26613aa372ffe38d5bfcbc77f653ee0a162a7ee4834b5b75b4d4cd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.06894",
    "kind": "arxiv",
    "version": 2
  }
}