Pith Number

pith:CAQTSQQL

pith:2021:CAQTSQQLQXJ6ACTKCQWI3DWORQ

not attested not anchored not stored refs pending

Fast Convex Quadratic Optimization Solvers with Adaptive Sketching-based Preconditioners

Jonathan Lacotte, Mert Pilanci

arxiv:2104.14101 v1 · 2021-04-29 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CAQTSQQLQXJ6ACTKCQWI3DWORQ}

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	2026-07-05T02:36:13.063102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

102139420b85d3e00a6a142c8d8ece8c38a9645cb4ae0e02122c99b2c2fea7e3

Aliases

arxiv: 2104.14101 · arxiv_version: 2104.14101v1 · doi: 10.48550/arxiv.2104.14101 · pith_short_12: CAQTSQQLQXJ6 · pith_short_16: CAQTSQQLQXJ6ACTK · pith_short_8: CAQTSQQL

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/CAQTSQQLQXJ6ACTKCQWI3DWORQ \
  | 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: 102139420b85d3e00a6a142c8d8ece8c38a9645cb4ae0e02122c99b2c2fea7e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6841b3244fc5c84a98e8a554a4194d980493b6604a01cb79e7657bbd8e2fd7d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-04-29T04:36:41Z",
    "title_canon_sha256": "113e1b3696afdf07f2067a9788766ef26b5504a9510a10954ce3790d80017809"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.14101",
    "kind": "arxiv",
    "version": 1
  }
}