Pith Number

pith:G5DRTGNZ

pith:2009:G5DRTGNZNSCDHQCA2KPKEGKLQL

not attested not anchored not stored refs pending

Randomized Kaczmarz solver for noisy linear systems

Deanna Needell

arxiv:0902.0958 v2 · 2009-02-05 · math.NA · cs.NA · 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{G5DRTGNZNSCDHQCA2KPKEGKLQL}

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	2026-06-03T23:06:10.898170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37471999b96c8433c040d29ea2194b82e1c9d7dec85120476d2a568f836b8b5f

Aliases

arxiv: 0902.0958 · arxiv_version: 0902.0958v2 · doi: 10.48550/arxiv.0902.0958 · pith_short_12: G5DRTGNZNSCD · pith_short_16: G5DRTGNZNSCDHQCA · pith_short_8: G5DRTGNZ

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/G5DRTGNZNSCDHQCA2KPKEGKLQL \
  | 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: 37471999b96c8433c040d29ea2194b82e1c9d7dec85120476d2a568f836b8b5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1420c4ae7c208d552dc1b741cdc1f30b19a9234d4ca519a9d9e7a3bc008b3937",
    "cross_cats_sorted": [
      "cs.NA",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2009-02-05T19:28:00Z",
    "title_canon_sha256": "e99937621f0f1c7b75fd7c815430c227406a2b1f47ed28d8818659b48c1610c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0958",
    "kind": "arxiv",
    "version": 2
  }
}