Pith Number

pith:RF4E3ARJ

pith:2012:RF4E3ARJLBRBAL2O75SYNPVTSZ

not attested not anchored not stored refs pending

Visual Objects Classification with Sliding Spatial Pyramid Matching

Hao Wooi Lim, Yong Haur Tay

arxiv:1212.3767 v2 · 2012-12-16 · 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{RF4E3ARJLBRBAL2O75SYNPVTSZ}

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	2026-05-18T03:38:13.665926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89784d82295862102f4eff6586beb3965115415afb3ed03870280ba92fa2b268

Aliases

arxiv: 1212.3767 · arxiv_version: 1212.3767v2 · doi: 10.48550/arxiv.1212.3767 · pith_short_12: RF4E3ARJLBRB · pith_short_16: RF4E3ARJLBRBAL2O · pith_short_8: RF4E3ARJ

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/RF4E3ARJLBRBAL2O75SYNPVTSZ \
  | 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: 89784d82295862102f4eff6586beb3965115415afb3ed03870280ba92fa2b268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f38c2e5799d742150fc50f8e2dffcf6c89bddbf75eea7416b8a54d6364764cdb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-12-16T09:10:54Z",
    "title_canon_sha256": "fc71115ea81d022f3ac7f942549ab828fd564e5181624aced3fea6866da9cfe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3767",
    "kind": "arxiv",
    "version": 2
  }
}