Pith Number

pith:XK4HKPPV

pith:2018:XK4HKPPVTQULXONFOIAA2RVF5G

not attested not anchored not stored refs pending

Scalar Quantization as Sparse Least Square Optimization

Chen Wang, Kai Zhou, Miao Du, Ruisen Luo, Shaomin Fei, Xiaofeng Gong, Xiaomei Yang

arxiv:1803.00204 v4 · 2018-03-01 · cs.LG · cs.AI · cs.NA · math.NA · 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{XK4HKPPVTQULXONFOIAA2RVF5G}

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	2026-06-04T19:11:34.179982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bab8753df59c28bbb9a572000d46a5e995d2b1b021ef353178b85da9195e09be

Aliases

arxiv: 1803.00204 · arxiv_version: 1803.00204v4 · doi: 10.48550/arxiv.1803.00204 · pith_short_12: XK4HKPPVTQUL · pith_short_16: XK4HKPPVTQULXONF · pith_short_8: XK4HKPPV

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/XK4HKPPVTQULXONFOIAA2RVF5G \
  | 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: bab8753df59c28bbb9a572000d46a5e995d2b1b021ef353178b85da9195e09be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69f3bf1fc8535cda6f9340099f2f50193f2eef87d7a6ab63ab348a0c10abc33d",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NA",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-03-01T04:07:40Z",
    "title_canon_sha256": "6d5b9a93946aa225a23d21b8e2f3cbffdc3e05a41c5737a3ee1f10ebf9c14692"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00204",
    "kind": "arxiv",
    "version": 4
  }
}