Pith Number

pith:EV52SP2B

pith:2014:EV52SP2BO6UOU2OIUFJCUELUDR

not attested not anchored not stored refs pending

Weighted SPICE: A Unifying Approach for Hyperparameter-Free Sparse Estimation

Dave Zachariah, Jian Li, Petre Stoica

arxiv:1406.7698 v1 · 2014-06-30 · 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{EV52SP2BO6UOU2OIUFJCUELUDR}

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	2026-05-18T02:16:21.034599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

257ba93f4177a8ea69c8a1522a11741c4f14d33bd6359f18f66525ea146ea467

Aliases

arxiv: 1406.7698 · arxiv_version: 1406.7698v1 · doi: 10.48550/arxiv.1406.7698 · pith_short_12: EV52SP2BO6UO · pith_short_16: EV52SP2BO6UOU2OI · pith_short_8: EV52SP2B

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/EV52SP2BO6UOU2OIUFJCUELUDR \
  | 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: 257ba93f4177a8ea69c8a1522a11741c4f14d33bd6359f18f66525ea146ea467

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1619e0f0a4e054cb32c0c48aa184bbb1ac800c2a671e3993c43e27c9480d06d",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-06-30T12:34:07Z",
    "title_canon_sha256": "b29224049939f084b1246dbe5de466f74ab2f7cf7a47a49d562eceb35f7df6f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7698",
    "kind": "arxiv",
    "version": 1
  }
}