Pith Number

pith:VD5ARNOV

pith:2017:VD5ARNOVXL2S2ERZRCIJKCY24O

not attested not anchored not stored refs pending

Communication-avoiding Cholesky-QR2 for rectangular matrices

Edgar Solomonik, Edward Hutter

arxiv:1710.08471 v6 · 2017-10-23 · cs.DC · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VD5ARNOVXL2S2ERZRCIJKCY24O}

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	2026-05-17T23:43:18.391457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8fa08b5d5baf52d12398890950b1ae3b632e9150e98ae761a29697e9a68cd50

Aliases

arxiv: 1710.08471 · arxiv_version: 1710.08471v6 · doi: 10.48550/arxiv.1710.08471 · pith_short_12: VD5ARNOVXL2S · pith_short_16: VD5ARNOVXL2S2ERZ · pith_short_8: VD5ARNOV

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/VD5ARNOVXL2S2ERZRCIJKCY24O \
  | 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: a8fa08b5d5baf52d12398890950b1ae3b632e9150e98ae761a29697e9a68cd50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fedfde8c872b18fd340757e6d1a357f13af37890311b7e3c7e141151a98563d5",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2017-10-23T19:35:07Z",
    "title_canon_sha256": "058d2ce32fdb85905a64193d2c8450800e0622d4efc8bfe3e63e5790483fbfa1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08471",
    "kind": "arxiv",
    "version": 6
  }
}