Pith Number

pith:Y5TSSG5M

pith:2013:Y5TSSG5M4L344MTS52MSFILLYK

not attested not anchored not stored refs pending

TOP-SPIN: TOPic discovery via Sparse Principal component INterference

Martin Tak\'a\v{c}, Ngai-Man Cheung, Peter Richt\'arik, Selin Damla Ahipa\c{s}ao\u{g}lu

arxiv:1311.1406 v1 · 2013-11-04 · cs.CV · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5TSSG5M4L344MTS52MSFILLYK}

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	2026-05-18T03:07:53.454782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c767291bace2f7ce3272ee9922a16bc286dc87ad47e541348fe742e1838d50d1

Aliases

arxiv: 1311.1406 · arxiv_version: 1311.1406v1 · doi: 10.48550/arxiv.1311.1406 · pith_short_12: Y5TSSG5M4L34 · pith_short_16: Y5TSSG5M4L344MTS · pith_short_8: Y5TSSG5M

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/Y5TSSG5M4L344MTS52MSFILLYK \
  | 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: c767291bace2f7ce3272ee9922a16bc286dc87ad47e541348fe742e1838d50d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bee94ce3cce40263a2d1922b3df78d073f3c1e270e5ac7a30eff0b0a11be4b7a",
    "cross_cats_sorted": [
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-11-04T19:03:31Z",
    "title_canon_sha256": "1011e37ee8d053b81d7dd5bfae6448f0aba213fa924149b26b058887c752266c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1406",
    "kind": "arxiv",
    "version": 1
  }
}