Pith Number

pith:OD3FAXI6

pith:2013:OD3FAXI6PGMYPL5YJ5LSOXMAZB

not attested not anchored not stored refs pending

Model Reduction with MapReduce-enabled Tall-and-Skinny Singular Value Decomposition

David F. Gleich, Jeremy Templeton, Paul G. Constantine, Yangyang Hou

arxiv:1306.4690 v2 · 2013-06-19 · math.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{OD3FAXI6PGMYPL5YJ5LSOXMAZB}

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	2026-05-18T02:38:59.562737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70f6505d1e799987afb84f57275d80c854785a90988bc3cc1a666dad8b6d0f2d

Aliases

arxiv: 1306.4690 · arxiv_version: 1306.4690v2 · doi: 10.48550/arxiv.1306.4690 · pith_short_12: OD3FAXI6PGMY · pith_short_16: OD3FAXI6PGMYPL5Y · pith_short_8: OD3FAXI6

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/OD3FAXI6PGMYPL5YJ5LSOXMAZB \
  | 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: 70f6505d1e799987afb84f57275d80c854785a90988bc3cc1a666dad8b6d0f2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23d2719466ff64c8bd7ebeb12344d6ef94c3cdf48c2cc28480bcf8508723a0b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-06-19T20:11:21Z",
    "title_canon_sha256": "4caae49d766eb0f7a92f13f27e83f88ec1d0c0bd8285b7c6f412957c72c69f5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4690",
    "kind": "arxiv",
    "version": 2
  }
}