Pith Number

pith:XCH2UKU7

pith:2017:XCH2UKU76KYFVCFE4NACE366TA

not attested not anchored not stored refs pending

A core-set approach for distributed quadratic programming in big-data classification

Giuseppe Notarstefano

arxiv:1702.04538 v1 · 2017-02-15 · math.OC · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCH2UKU76KYFVCFE4NACE366TA}

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	2026-05-18T00:50:41.343761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b88faa2a9ff2b05a88a4e340226fde982bb1b48c3d527eba269c5b102afe760d

Aliases

arxiv: 1702.04538 · arxiv_version: 1702.04538v1 · doi: 10.48550/arxiv.1702.04538 · pith_short_12: XCH2UKU76KYF · pith_short_16: XCH2UKU76KYFVCFE · pith_short_8: XCH2UKU7

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/XCH2UKU76KYFVCFE4NACE366TA \
  | 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: b88faa2a9ff2b05a88a4e340226fde982bb1b48c3d527eba269c5b102afe760d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1d76feb12123b42867e734240d6d6d042dac4003c528dbcba0d124d893a9bdc",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-02-15T10:36:05Z",
    "title_canon_sha256": "fd31f471ccc208bfc8f92afe583bf0e4a19369bcc58a41d0b3ed96378caca1b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04538",
    "kind": "arxiv",
    "version": 1
  }
}