Pith Number

pith:DI4NDZUA

pith:2014:DI4NDZUARJUHCPIV6VJMYYVEC5

not attested not anchored not stored refs pending

Kaczmarz Algorithm and Frames

James Tanis, Wojciech Czaja

arxiv:1409.8310 v1 · 2014-09-29 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DI4NDZUARJUHCPIV6VJMYYVEC5}

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	2026-05-18T02:41:25.603611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a38d1e6808a68713d15f552cc62a41764269e32ac35c9c7412747e44836df10

Aliases

arxiv: 1409.8310 · arxiv_version: 1409.8310v1 · doi: 10.48550/arxiv.1409.8310 · pith_short_12: DI4NDZUARJUH · pith_short_16: DI4NDZUARJUHCPIV · pith_short_8: DI4NDZUA

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/DI4NDZUARJUHCPIV6VJMYYVEC5 \
  | 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: 1a38d1e6808a68713d15f552cc62a41764269e32ac35c9c7412747e44836df10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d107dc56cbd41a1f044077f158154b9573e5abef2953195596c7dd4d1f50801",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-09-29T20:18:20Z",
    "title_canon_sha256": "0190509e55c7022d55365412bc46c2dbc31f7c16d2658368bc4f109b5294e12a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8310",
    "kind": "arxiv",
    "version": 1
  }
}