Pith Number

pith:RMSVQ6KP

pith:2015:RMSVQ6KPBBTT6Z7ZAVSI37XOEE

not attested not anchored not stored refs pending

Generalized Conjugate Gradient Methods for $\ell_1$ Regularized Convex Quadratic Programming with Finite Convergence

Xiaojun Chen, Zhaosong Lu

arxiv:1511.07837 v3 · 2015-11-24 · math.OC · cs.LG · math.NA · stat.CO · 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{RMSVQ6KPBBTT6Z7ZAVSI37XOEE}

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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	2026-05-18T01:20:55.577252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b2558794f08673f67f905648dfeee2136c744b3bb77a8211d214db8bcd4fca4

Aliases

arxiv: 1511.07837 · arxiv_version: 1511.07837v3 · doi: 10.48550/arxiv.1511.07837 · pith_short_12: RMSVQ6KPBBTT · pith_short_16: RMSVQ6KPBBTT6Z7Z · pith_short_8: RMSVQ6KP

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/RMSVQ6KPBBTT6Z7ZAVSI37XOEE \
  | 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: 8b2558794f08673f67f905648dfeee2136c744b3bb77a8211d214db8bcd4fca4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0556c07410a7f8c02f8acd760088e6c56016924715a67e4ba3e3c729c01a5cf",
    "cross_cats_sorted": [
      "cs.LG",
      "math.NA",
      "stat.CO",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-11-24T19:28:09Z",
    "title_canon_sha256": "80d12a90d326cc84574d893071157483950ea4b7735188b5f503ad7c1e0e01ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07837",
    "kind": "arxiv",
    "version": 3
  }
}