Pith Number

pith:SDEV2VN4

pith:2015:SDEV2VN4CLC2KGHEEP3C5ZHA5Q

not attested not anchored not stored refs pending

Online Hyperparameter-Free Sparse Estimation Method

Dave Zachariah, Petre Stoica

arxiv:1505.01461 v1 · 2015-05-06 · 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{SDEV2VN4CLC2KGHEEP3C5ZHA5Q}

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	2026-05-18T01:58:26.660428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90c95d55bc12c5a518e423f62ee4e0ec2e9d4357520c1498edbfc6477e6e695a

Aliases

arxiv: 1505.01461 · arxiv_version: 1505.01461v1 · doi: 10.48550/arxiv.1505.01461 · pith_short_12: SDEV2VN4CLC2 · pith_short_16: SDEV2VN4CLC2KGHE · pith_short_8: SDEV2VN4

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/SDEV2VN4CLC2KGHEEP3C5ZHA5Q \
  | 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: 90c95d55bc12c5a518e423f62ee4e0ec2e9d4357520c1498edbfc6477e6e695a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc4e60e15e3b3b9a314e9037d57221a2b358903aed8366ddde0fa5fb3f2b2dc8",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-05-06T19:03:25Z",
    "title_canon_sha256": "c3820b37bc5e39b5b8299b57f98a6cd4e3a846cefbc98abbbd6d84b1c77e379f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01461",
    "kind": "arxiv",
    "version": 1
  }
}