Pith Number

pith:WCIDSFQC

pith:2024:WCIDSFQCVHMADBJA6OBTI4552Z

not attested not anchored not stored refs pending

A Note on Approximate Hadamard Matrices

Stefan Steinerberger

arxiv:2402.13202 v1 · 2024-02-20 · math.CO · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WCIDSFQCVHMADBJA6OBTI4552Z}

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.

Cited by

1 paper in Pith

Qrazor: Reliable and Effortless 4-bit LLM Quantization by Significant Data Razoring

Receipt and verification

First computed	2026-07-05T07:47:22.065007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b090391602a9d8018520f3833473bdd650e46f0095e1d75bf19389b62e8a6f1f

Aliases

arxiv: 2402.13202 · arxiv_version: 2402.13202v1 · doi: 10.48550/arxiv.2402.13202 · pith_short_12: WCIDSFQCVHMA · pith_short_16: WCIDSFQCVHMADBJA · pith_short_8: WCIDSFQC

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/WCIDSFQCVHMADBJA6OBTI4552Z \
  | 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: b090391602a9d8018520f3833473bdd650e46f0095e1d75bf19389b62e8a6f1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4702f4ebb89b3f1d02b666595d4f08c0a212b5c368783d5d5d3ff4a277809d5",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2024-02-20T18:10:58Z",
    "title_canon_sha256": "58928325f1ba0fea2fce40f1802065d26439da867861e6df280ef01de11f52a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.13202",
    "kind": "arxiv",
    "version": 1
  }
}