Pith Number

pith:LE4LDRJF

pith:2012:LE4LDRJFRNZKVQMZBYZOFG5V2I

not attested not anchored not stored refs pending

Distributions of Demmel and Related Condition Numbers

Matthew McKay, Prathapasinghe Dharmawansa, Yang Chen

arxiv:1211.0517 v1 · 2012-11-02 · math.ST · cs.CC · cs.NA · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LE4LDRJFRNZKVQMZBYZOFG5V2I}

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	2026-05-18T03:41:31.753656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5938b1c5258b72aac1990e32e29bb5d218c701627a5313914441337bea5c57a6

Aliases

arxiv: 1211.0517 · arxiv_version: 1211.0517v1 · doi: 10.48550/arxiv.1211.0517 · pith_short_12: LE4LDRJFRNZK · pith_short_16: LE4LDRJFRNZKVQMZ · pith_short_8: LE4LDRJF

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/LE4LDRJFRNZKVQMZBYZOFG5V2I \
  | 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: 5938b1c5258b72aac1990e32e29bb5d218c701627a5313914441337bea5c57a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e02e3211d257a4e805a85da1732c76da15c9c19d1421268115276e629675addb",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.NA",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-11-02T18:38:29Z",
    "title_canon_sha256": "aead15c8abd81c5a7ccdbe452257aa0d0b6bdf71c4fd2e70a6f7ea4bda5c5691"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0517",
    "kind": "arxiv",
    "version": 1
  }
}