Pith Number

pith:S325VTKX

pith:2018:S325VTKXRO2FLO3NCN4JJE7VPZ

not attested not anchored not stored refs pending

Approximation Accuracy of the Krylov Subspaces for Linear Discrete Ill-Posed Problems

Zhongxiao Jia

arxiv:1805.10132 v3 · 2018-05-24 · 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{S325VTKXRO2FLO3NCN4JJE7VPZ}

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	2026-06-04T19:11:55.613253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96f5dacd578bb455bb6d13789493f57e4f08b302b72a35b7f994799c243fcb01

Aliases

arxiv: 1805.10132 · arxiv_version: 1805.10132v3 · doi: 10.48550/arxiv.1805.10132 · pith_short_12: S325VTKXRO2F · pith_short_16: S325VTKXRO2FLO3N · pith_short_8: S325VTKX

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/S325VTKXRO2FLO3NCN4JJE7VPZ \
  | 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: 96f5dacd578bb455bb6d13789493f57e4f08b302b72a35b7f994799c243fcb01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc0090c334402d48dfc8c2c49e76bb051665ceced313284e1cec55bb11b8d690",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-24T07:23:13Z",
    "title_canon_sha256": "be8c3d15f7dbc9558e2355f829276b5c242b7e1aee012722a75936fdffb8afb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10132",
    "kind": "arxiv",
    "version": 3
  }
}