Pith Number

pith:AIBBMVZJ

pith:2006:AIBBMVZJF6HQFLL2ED42KQ2L35

not attested not anchored not stored refs pending

First-order methods for sparse covariance selection

Alexandre d'Aspremont, Laurent El Ghaoui, Onureena Banerjee

arxiv:math/0609812 v1 · 2006-09-28 · math.OC · 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{AIBBMVZJF6HQFLL2ED42KQ2L35}

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	2026-07-04T15:02:04.341935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02021657292f8f02ad7a20f9a5434bdf4fb1994c678a1f609750b3069610fd4e

Aliases

arxiv: math/0609812 · arxiv_version: math/0609812v1 · doi: 10.48550/arxiv.math/0609812 · pith_short_12: AIBBMVZJF6HQ · pith_short_16: AIBBMVZJF6HQFLL2 · pith_short_8: AIBBMVZJ

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/AIBBMVZJF6HQFLL2ED42KQ2L35 \
  | 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: 02021657292f8f02ad7a20f9a5434bdf4fb1994c678a1f609750b3069610fd4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbf92ee105896c59e3da4fe66f800be4984677eee732b6bc4295f025e26e6d8d",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "math.OC",
    "submitted_at": "2006-09-28T16:25:45Z",
    "title_canon_sha256": "35602ba1cbedc56ee4bf84326016de73945365649d5e26f4830d527461b503ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0609812",
    "kind": "arxiv",
    "version": 1
  }
}