Pith Number

pith:UN2O3PPZ

pith:2015:UN2O3PPZF4NTLS3VKD2XFTUNB3

not attested not anchored not stored refs pending

Image classification by visual bag-of-words refinement and reduction

Ji-Rong Wen, Liwei Wang, Zhiwu Lu

arxiv:1501.04292 v1 · 2015-01-18 · 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{UN2O3PPZF4NTLS3VKD2XFTUNB3}

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	2026-05-18T00:41:08.493974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a374edbdf92f1b35cb7550f572ce8d0ef76c1a620ed8b291a564b801a635c360

Aliases

arxiv: 1501.04292 · arxiv_version: 1501.04292v1 · doi: 10.48550/arxiv.1501.04292 · pith_short_12: UN2O3PPZF4NT · pith_short_16: UN2O3PPZF4NTLS3V · pith_short_8: UN2O3PPZ

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/UN2O3PPZF4NTLS3VKD2XFTUNB3 \
  | 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: a374edbdf92f1b35cb7550f572ce8d0ef76c1a620ed8b291a564b801a635c360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13856b804b997f04245198570673cf02c59d71e40c16fded8e2919beebc48852",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-01-18T12:46:11Z",
    "title_canon_sha256": "a4c3abd2416c347b4b038028b238d55abfaeadaf637582de89419e24c1b244bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04292",
    "kind": "arxiv",
    "version": 1
  }
}