Pith Number

pith:PKFDB4YH

pith:2015:PKFDB4YHB35DYLUYPHP5ZN3CYB

not attested not anchored not stored refs pending

An efficient multi-core implementation of a novel HSS-structured multifrontal solver using randomized sampling

Artem Napov, Francois-Henry Rouet, Pieter Ghysels, Samuel Williams, Xiaoye S. Li

arxiv:1502.07405 v1 · 2015-02-25 · 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{PKFDB4YHB35DYLUYPHP5ZN3CYB}

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	2026-05-18T02:26:09.889540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a8a30f3070efa3c2e9879dfdcb762c0648507ee3cf1a4471d1bf08bb8da82ec

Aliases

arxiv: 1502.07405 · arxiv_version: 1502.07405v1 · doi: 10.48550/arxiv.1502.07405 · pith_short_12: PKFDB4YHB35D · pith_short_16: PKFDB4YHB35DYLUY · pith_short_8: PKFDB4YH

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/PKFDB4YHB35DYLUYPHP5ZN3CYB \
  | 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: 7a8a30f3070efa3c2e9879dfdcb762c0648507ee3cf1a4471d1bf08bb8da82ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59cdbb34e135ee8d4cf193be9b4ffadedbfa99fea799f6423f2e414b42e6b45b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2015-02-25T23:54:16Z",
    "title_canon_sha256": "884053e5e9e9ed3233c139f01066c7a11d210baa188d6b64e2a2baaa8fe38589"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07405",
    "kind": "arxiv",
    "version": 1
  }
}