Pith Number

pith:X2A35SNL

pith:2015:X2A35SNL7SM4HDKENNPRHUX27W

not attested not anchored not stored refs pending

Efficient Learning for Undirected Topic Models

Jiatao Gu, Victor O.K. Li

arxiv:1506.07477 v1 · 2015-06-24 · cs.LG · 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{X2A35SNL7SM4HDKENNPRHUX27W}

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	2026-05-18T01:39:53.951626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be81bec9abfc99c38d446b5f13d2fafda563777ea0e2b7d63049fed6d0bc9894

Aliases

arxiv: 1506.07477 · arxiv_version: 1506.07477v1 · doi: 10.48550/arxiv.1506.07477 · pith_short_12: X2A35SNL7SM4 · pith_short_16: X2A35SNL7SM4HDKE · pith_short_8: X2A35SNL

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/X2A35SNL7SM4HDKENNPRHUX27W \
  | 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: be81bec9abfc99c38d446b5f13d2fafda563777ea0e2b7d63049fed6d0bc9894

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68ab07778017641a5224bcd2bdee1e85aaa6a54049de416556de93ba0a08aec3",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-06-24T17:27:28Z",
    "title_canon_sha256": "1233fd1f2e94c46a2dc04a3db27bc9bd6ce042bab19bd49a9ca64d9623dd381d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.07477",
    "kind": "arxiv",
    "version": 1
  }
}