Pith Number

pith:OXSBEBGL

pith:2016:OXSBEBGLNEQECVIJDLL237W7SZ

not attested not anchored not stored refs pending

Sparse matrix factorizations for fast linear solvers with application to Laplacian systems

Jean-Charles Delvenne, Maguy Trefois, Michael T. Schaub, Paul Van Dooren

arxiv:1605.09148 v2 · 2016-05-30 · math.NA · cs.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXSBEBGLNEQECVIJDLL237W7SZ}

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	2026-06-04T18:09:42.637932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75e41204cb69204155091ad7adfedf966cd7a6cd209aefc3bb558b109c3c625d

Aliases

arxiv: 1605.09148 · arxiv_version: 1605.09148v2 · doi: 10.48550/arxiv.1605.09148 · pith_short_12: OXSBEBGLNEQE · pith_short_16: OXSBEBGLNEQECVIJ · pith_short_8: OXSBEBGL

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/OXSBEBGLNEQECVIJDLL237W7SZ \
  | 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: 75e41204cb69204155091ad7adfedf966cd7a6cd209aefc3bb558b109c3c625d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "294f711c0ce639df07e24065e3f595934cbe2c61ebb89d013f48035dd093f1fc",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-05-30T09:15:16Z",
    "title_canon_sha256": "6e868bb670afd5a2660ab3f8f7cd244f3cd37da92a298ba3515db2979ce17b45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09148",
    "kind": "arxiv",
    "version": 2
  }
}