Pith Number

pith:WMUWKKTK

pith:2010:WMUWKKTKFLYFLSHGDCU67T5UY4

not attested not anchored not stored refs pending

Minimizing Communication for Eigenproblems and the Singular Value Decomposition

Grey Ballard, Ioana Dumitriu, James Demmel

arxiv:1011.3077 v1 · 2010-11-13 · math.NA · cs.DC · cs.MS · 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{WMUWKKTKFLYFLSHGDCU67T5UY4}

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	2026-05-18T04:35:56.548581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b329652a6a2af055c8e618a9efcfb4c71e2dcefb78a5c68180dbdb40a49ea1b6

Aliases

arxiv: 1011.3077 · arxiv_version: 1011.3077v1 · doi: 10.48550/arxiv.1011.3077 · pith_short_12: WMUWKKTKFLYF · pith_short_16: WMUWKKTKFLYFLSHG · pith_short_8: WMUWKKTK

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/WMUWKKTKFLYFLSHGDCU67T5UY4 \
  | 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: b329652a6a2af055c8e618a9efcfb4c71e2dcefb78a5c68180dbdb40a49ea1b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "277da2c46372b58db01acaa12d0fc8852b8d59dbb8991024f22ab4d8cbc0b55a",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.MS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-11-13T00:18:02Z",
    "title_canon_sha256": "720668e2ad9b8986112185af7725987abc9ee61ae98664abec56129e9989637d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3077",
    "kind": "arxiv",
    "version": 1
  }
}