Pith Number

pith:U7X4SIAW

pith:2022:U7X4SIAWORFD5K7P3MEVBJFR4L

not attested not anchored not stored refs pending

How Descriptive are GMRES Convergence Bounds?

Mark Embree

arxiv:2209.01231 v1 · 2022-09-02 · math.NA · cs.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{U7X4SIAWORFD5K7P3MEVBJFR4L}

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

When can a neural operator replace a coarse solve? Architectural principles for two-level preconditioning

Receipt and verification

First computed	2026-07-05T04:54:26.409014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7efc92016744a3eabefdb0950a4b1e2ff9a01952cd48848bac1a81427a0061e

Aliases

arxiv: 2209.01231 · arxiv_version: 2209.01231v1 · doi: 10.48550/arxiv.2209.01231 · pith_short_12: U7X4SIAWORFD · pith_short_16: U7X4SIAWORFD5K7P · pith_short_8: U7X4SIAW

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/U7X4SIAWORFD5K7P3MEVBJFR4L \
  | 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: a7efc92016744a3eabefdb0950a4b1e2ff9a01952cd48848bac1a81427a0061e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6be8d54740e30872a5530b2cf77cbbe1de0b23bec4d0f654712082a84c4b0d8",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-09-02T18:24:32Z",
    "title_canon_sha256": "0701a200af7fe10d790f6b6206768da26bf0b7692954f4a49a4e33eb25f7d56d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.01231",
    "kind": "arxiv",
    "version": 1
  }
}