Pith Number

pith:JETLATKF

pith:2019:JETLATKFZDCPTJGLHFK2TEG2RN

not attested not anchored not stored refs pending

Exploiting variable precision in GMRES

David Titley-Peloquin, Ehouarn Simon, Philippe Toint, Serge Gratton

arxiv:1907.10550 v2 · 2019-07-24 · 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{JETLATKFZDCPTJGLHFK2TEG2RN}

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	2026-07-05T00:42:19.871505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4926b04d45c8c4f9a4cb3955a990da8b48638b6db7c2832ce90c44c109b8e760

Aliases

arxiv: 1907.10550 · arxiv_version: 1907.10550v2 · doi: 10.48550/arxiv.1907.10550 · pith_short_12: JETLATKFZDCP · pith_short_16: JETLATKFZDCPTJGL · pith_short_8: JETLATKF

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/JETLATKFZDCPTJGLHFK2TEG2RN \
  | 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: 4926b04d45c8c4f9a4cb3955a990da8b48638b6db7c2832ce90c44c109b8e760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0347c18d599a4bc9992cea944d42a82f91594f2a33b94f39841f2834a87282b4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-24T16:42:34Z",
    "title_canon_sha256": "3541cf2e412101740d1a5dc4e7358bbaff1e71f6e7e38c141f0c2eb158d360b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10550",
    "kind": "arxiv",
    "version": 2
  }
}