Pith Number

pith:XA2S5ZCR

pith:2017:XA2S5ZCRJIUTF2TXP4XHD4RHB4

not attested not anchored not stored refs pending

Greedy Structure Learning of Hierarchical Compositional Models

Adam Kortylewski, Aleksander Wieczorek, Andreas Morel-Forster, Clemens Blumer, Mario Wieser, Sonali Parbhoo, Thomas Vetter, Volker Roth

arxiv:1701.06171 v4 · 2017-01-22 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XA2S5ZCRJIUTF2TXP4XHD4RHB4}

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	2026-05-17T23:48:41.032197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8352ee4514a2932ea777f2e71f2270f3145cdb567be969ff503bb46e98a3211

Aliases

arxiv: 1701.06171 · arxiv_version: 1701.06171v4 · doi: 10.48550/arxiv.1701.06171 · pith_short_12: XA2S5ZCRJIUT · pith_short_16: XA2S5ZCRJIUTF2TX · pith_short_8: XA2S5ZCR

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/XA2S5ZCRJIUTF2TXP4XHD4RHB4 \
  | 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: b8352ee4514a2932ea777f2e71f2270f3145cdb567be969ff503bb46e98a3211

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94a1d08223f295ea56cbefad68340caba2a1cfdce5931afe80296c8a86f2006a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-22T14:56:31Z",
    "title_canon_sha256": "9db616ce0117b8629336d189fa9626700a3a983f25c198bb608e97e0afc4f3d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.06171",
    "kind": "arxiv",
    "version": 4
  }
}