Pith Number

pith:C36SNN52

pith:2013:C36SNN52T7JF7U35Q5NYA2YCVS

not attested not anchored not stored refs pending

Robust Face Recognition via Block Sparse Bayesian Learning

Taiyong Li, Zhilin Zhang

arxiv:1301.6847 v2 · 2013-01-29 · 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{C36SNN52T7JF7U35Q5NYA2YCVS}

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	2026-05-18T03:13:00.067737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16fd26b7ba9fd25fd37d875b806b02acba9471e6766c134e82ee3e73d5a81d06

Aliases

arxiv: 1301.6847 · arxiv_version: 1301.6847v2 · doi: 10.48550/arxiv.1301.6847 · pith_short_12: C36SNN52T7JF · pith_short_16: C36SNN52T7JF7U35 · pith_short_8: C36SNN52

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/C36SNN52T7JF7U35Q5NYA2YCVS \
  | 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: 16fd26b7ba9fd25fd37d875b806b02acba9471e6766c134e82ee3e73d5a81d06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72da1d07670ea582016ceb9792314e5244a4da26732ba402a9f49335d23e4f17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-01-29T07:23:00Z",
    "title_canon_sha256": "8698633ff01a6f44437da6cd0891f313da6680a7e52aca2a09de449740061028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6847",
    "kind": "arxiv",
    "version": 2
  }
}