Pith Number

pith:2GQ3BNRO

pith:2013:2GQ3BNRO55HO5CA6ML6YCJHTRJ

not attested not anchored not stored refs pending

Kinetic Energy Plus Penalty Functions for Sparse Estimation

Shibo Zhao, Shuchang Zhou, Zebang Shen, Zhihua Zhang

arxiv:1307.5601 v3 · 2013-07-22 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GQ3BNRO55HO5CA6ML6YCJHTRJ}

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	2026-05-18T02:48:17.694874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a1b0b62eef4eee881e62fd8124f38a6acb09a0788f474d53a336a97d01135e

Aliases

arxiv: 1307.5601 · arxiv_version: 1307.5601v3 · doi: 10.48550/arxiv.1307.5601 · pith_short_12: 2GQ3BNRO55HO · pith_short_16: 2GQ3BNRO55HO5CA6 · pith_short_8: 2GQ3BNRO

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/2GQ3BNRO55HO5CA6ML6YCJHTRJ \
  | 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: d1a1b0b62eef4eee881e62fd8124f38a6acb09a0788f474d53a336a97d01135e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "256204cdb14aee5fbe78dddd48ff691fe29c8363d0b5c0004045b9a81488103d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-07-22T06:55:13Z",
    "title_canon_sha256": "ec9dfecb8bdd941af9e2c62fec73bb83ba562f08b403835fe10665ee63e98316"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5601",
    "kind": "arxiv",
    "version": 3
  }
}