Pith Number

pith:BOMYZAKB

pith:2010:BOMYZAKB6SXKAKO64KJ3ML5C6F

not attested not anchored not stored refs pending

ILU Preconditioning Based on the FAPINV Algorithm

Amin Rafiei, Davod Khojasteh Salkuyeh, Hadi Roohani

arxiv:1010.2812 v1 · 2010-10-14 · 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{BOMYZAKB6SXKAKO64KJ3ML5C6F}

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	2026-05-18T04:39:19.148520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b998c8141f4aea029dee293b62fa2f17df0c8810a4ebd6a22a0b6d192acb14d

Aliases

arxiv: 1010.2812 · arxiv_version: 1010.2812v1 · doi: 10.48550/arxiv.1010.2812 · pith_short_12: BOMYZAKB6SXK · pith_short_16: BOMYZAKB6SXKAKO6 · pith_short_8: BOMYZAKB

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/BOMYZAKB6SXKAKO64KJ3ML5C6F \
  | 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: 0b998c8141f4aea029dee293b62fa2f17df0c8810a4ebd6a22a0b6d192acb14d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "835de6a0438ecbd245758d267136890f9a832f7deb309a99e315f34184b0d04a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-10-14T03:15:32Z",
    "title_canon_sha256": "1f99a6609729c88110af22e759e66b9cc9415523cf7f6898df628d9da4f5fb4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2812",
    "kind": "arxiv",
    "version": 1
  }
}