Pith Number

pith:L27T6OS3

pith:2010:L27T6OS3AVPVF7SSVLIT6ODWSB

not attested not anchored not stored refs pending

Improved analysis of the subsampled randomized Hadamard transform

Joel A. Tropp

arxiv:1011.1595 v4 · 2010-11-06 · math.NA · cs.DS · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L27T6OS3AVPVF7SSVLIT6ODWSB}

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	2026-05-18T02:53:15.934860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ebf3f3a5b055f52fe52aad13f38769051bbcefa3a2205038dfba9fabf9ae0b9

Aliases

arxiv: 1011.1595 · arxiv_version: 1011.1595v4 · doi: 10.48550/arxiv.1011.1595 · pith_short_12: L27T6OS3AVPV · pith_short_16: L27T6OS3AVPVF7SS · pith_short_8: L27T6OS3

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/L27T6OS3AVPVF7SSVLIT6ODWSB \
  | 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: 5ebf3f3a5b055f52fe52aad13f38769051bbcefa3a2205038dfba9fabf9ae0b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d506eed5dbf4a72a775ee0125a66556a5f59367b9bc250d70f8bfcbf6320d421",
    "cross_cats_sorted": [
      "cs.DS",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-11-06T22:15:18Z",
    "title_canon_sha256": "0541b645e9df1fd2037e3086109b537c90ef6d8b0a329c19236fb4942c3aefa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.1595",
    "kind": "arxiv",
    "version": 4
  }
}