Pith Number

pith:WPPLVYCP

pith:2012:WPPLVYCPDCX7NMOM25LHVTHJYP

not attested not anchored not stored refs pending

Blurred Image Classification based on Adaptive Dictionary

Guangling Sun, Guoqing Li, Jie Yin

arxiv:1210.1029 v1 · 2012-10-03 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPPLVYCPDCX7NMOM25LHVTHJYP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:17:24.823627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3debae04f18aff6b1ccd7567acce9c3f63e3da4808d0e67154b8d56b1396620

Aliases

arxiv: 1210.1029 · arxiv_version: 1210.1029v1 · doi: 10.48550/arxiv.1210.1029 · pith_short_12: WPPLVYCPDCX7 · pith_short_16: WPPLVYCPDCX7NMOM · pith_short_8: WPPLVYCP

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/WPPLVYCPDCX7NMOM25LHVTHJYP \
  | 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: b3debae04f18aff6b1ccd7567acce9c3f63e3da4808d0e67154b8d56b1396620

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80a217ff14e1b325f824814526f7d74475560181fc020125c1391706c6c916e4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2012-10-03T08:54:01Z",
    "title_canon_sha256": "fee4f9734b23f6430778af9e39097bb4242114913145f4c7b4525a042d2fd5db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1029",
    "kind": "arxiv",
    "version": 1
  }
}