Pith Number

pith:HVLZHLYM

pith:2019:HVLZHLYMSDV4QNCGMBK45M3TK4

not attested not anchored not stored refs pending

Iterative methods for linear systems of equations: A brief historical journey

Yousef Saad

arxiv:1908.01083 v1 · 2019-08-02 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVLZHLYMSDV4QNCGMBK45M3TK4}

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.

Cited by

1 paper in Pith

Lower bounds for trace estimation via Block Krylov and other methods

Receipt and verification

First computed	2026-07-04T23:51:27.087404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d5793af0c90ebc834466055ceb373572ef3041b7ecc1cdccb621fc47d4667ce

Aliases

arxiv: 1908.01083 · arxiv_version: 1908.01083v1 · doi: 10.48550/arxiv.1908.01083 · pith_short_12: HVLZHLYMSDV4 · pith_short_16: HVLZHLYMSDV4QNCG · pith_short_8: HVLZHLYM

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/HVLZHLYMSDV4QNCGMBK45M3TK4 \
  | 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: 3d5793af0c90ebc834466055ceb373572ef3041b7ecc1cdccb621fc47d4667ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55da1d448305057683f175112d25edeb885571e95e58c2b755af6a799106fa6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-08-02T22:42:47Z",
    "title_canon_sha256": "c265c1209722f8706b7c92168af3183a88e405cd133be54cd167cbd1b08382a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01083",
    "kind": "arxiv",
    "version": 1
  }
}