Pith Number

pith:XA2A4Z7B

pith:2012:XA2A4Z7B52TODP54HDEWXNNCL6

not attested not anchored not stored refs pending

Paved with Good Intentions: Analysis of a Randomized Block Kaczmarz Method

Deanna Needell, Joel A. Tropp

arxiv:1208.3805 v3 · 2012-08-19 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XA2A4Z7B52TODP54HDEWXNNCL6}

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	2026-05-18T02:21:00.997419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8340e67e1eea6e1bfbc38c96bb5a25fa7612c1d39cdf7d595ff7de6f95b05f3

Aliases

arxiv: 1208.3805 · arxiv_version: 1208.3805v3 · doi: 10.48550/arxiv.1208.3805 · pith_short_12: XA2A4Z7B52TO · pith_short_16: XA2A4Z7B52TODP54 · pith_short_8: XA2A4Z7B

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/XA2A4Z7B52TODP54HDEWXNNCL6 \
  | 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: b8340e67e1eea6e1bfbc38c96bb5a25fa7612c1d39cdf7d595ff7de6f95b05f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e386ddd1934bb67aea39103a94a323c173132dd22603dbcddf08c71a84ccf090",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-08-19T03:51:16Z",
    "title_canon_sha256": "6934eff2d72dab8baeb8c376879630884943532414c538d0a50aca31fdb5203e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3805",
    "kind": "arxiv",
    "version": 3
  }
}