Pith Number

pith:RBYE2WHV

pith:2013:RBYE2WHVOXZG23U4PQY4GPEHX7

not attested not anchored not stored refs pending

Tight is better: Performance Improvement of the Compressive Classifier Using Equi-Norm Tight Frames

Hailong Shi, Hao Zhang

arxiv:1301.6256 v2 · 2013-01-26 · cs.IT · math.IT · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RBYE2WHVOXZG23U4PQY4GPEHX7}

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	2026-05-18T03:03:22.862828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88704d58f575f26d6e9c7c31c33c87bffb6c327a946eaffc3e10d18a552e316e

Aliases

arxiv: 1301.6256 · arxiv_version: 1301.6256v2 · doi: 10.48550/arxiv.1301.6256 · pith_short_12: RBYE2WHVOXZG · pith_short_16: RBYE2WHVOXZG23U4 · pith_short_8: RBYE2WHV

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/RBYE2WHVOXZG23U4PQY4GPEHX7 \
  | 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: 88704d58f575f26d6e9c7c31c33c87bffb6c327a946eaffc3e10d18a552e316e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d43994c676499ebc6e0db64af64a6d03016427bafe5d9f9d8584054ec43381e",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-26T13:59:26Z",
    "title_canon_sha256": "6d435ac1e40ece9d0c581b646a025390974ab7c2f5fb2b8e175d54d79a0937ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6256",
    "kind": "arxiv",
    "version": 2
  }
}