Pith Number

pith:F7YHTASG

pith:2010:F7YHTASGBPJBP5OEJT7CY632LH

not attested not anchored not stored refs pending

MINRES-QLP: a Krylov subspace method for indefinite or singular symmetric systems

Christopher C. Paige, Michael A. Saunders, Sou-Cheng T. Choi

arxiv:1003.4042 v3 · 2010-03-22 · math.NA · cs.CE · cs.NA · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7YHTASGBPJBP5OEJT7CY632LH}

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	2026-05-18T02:20:18.184793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ff07982460bd217f5c44cfe2c7b7a59e20079f7d6a7b415186b592fda7d634e

Aliases

arxiv: 1003.4042 · arxiv_version: 1003.4042v3 · doi: 10.48550/arxiv.1003.4042 · pith_short_12: F7YHTASGBPJB · pith_short_16: F7YHTASGBPJBP5OE · pith_short_8: F7YHTASG

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/F7YHTASGBPJBP5OEJT7CY632LH \
  | 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: 2ff07982460bd217f5c44cfe2c7b7a59e20079f7d6a7b415186b592fda7d634e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58ca0539fba4608aa42532d28e1b0a951a3ef4ce1dd5ec74c460684240cb06c5",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-03-22T02:02:10Z",
    "title_canon_sha256": "43b1bcb01421761aaa8486d70d0e24b333475b28dcd57fdf24930ab33cc2ee1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.4042",
    "kind": "arxiv",
    "version": 3
  }
}