Pith Number

pith:OQJONUNZ

pith:2015:OQJONUNZROKP5LEHDAESICBPPH

not attested not anchored not stored refs pending

Unsupervised Adaptation of SPLDA

Jes\'us Villalba

arxiv:1511.07421 v1 · 2015-11-20 · 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{OQJONUNZROKP5LEHDAESICBPPH}

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	2026-05-18T01:26:04.784818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7412e6d1b98b94feac87180924082f79df59f00eb7d37f1b08e32123194ed66b

Aliases

arxiv: 1511.07421 · arxiv_version: 1511.07421v1 · doi: 10.48550/arxiv.1511.07421 · pith_short_12: OQJONUNZROKP · pith_short_16: OQJONUNZROKP5LEH · pith_short_8: OQJONUNZ

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/OQJONUNZROKP5LEHDAESICBPPH \
  | 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: 7412e6d1b98b94feac87180924082f79df59f00eb7d37f1b08e32123194ed66b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54bca9cd4b3cb9cd10a911bf74ad0320f9f8d356323cdbbf0ac7c14bd9a6ec35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-11-20T21:25:59Z",
    "title_canon_sha256": "210ee0f37893a16d2f6f48c7d05e3840e090544d4f7ba50a53ed573522c3d014"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07421",
    "kind": "arxiv",
    "version": 1
  }
}