Pith Number

pith:4Y4TZLGT

pith:2016:4Y4TZLGTWRAKBWP5Y26SX6NFQR

not attested not anchored not stored refs pending

Weighted Inner Products for GMRES and GMRES-DR

Huy V. Nguyen, Mark Embree, Ronald B. Morgan

arxiv:1607.00255 v2 · 2016-07-01 · math.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{4Y4TZLGTWRAKBWP5Y26SX6NFQR}

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	2026-05-18T00:48:28.190127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6393cacd3b440a0d9fdc6bd2bf9a58465b75873d626c24f626bf7f88aa58078

Aliases

arxiv: 1607.00255 · arxiv_version: 1607.00255v2 · doi: 10.48550/arxiv.1607.00255 · pith_short_12: 4Y4TZLGTWRAK · pith_short_16: 4Y4TZLGTWRAKBWP5 · pith_short_8: 4Y4TZLGT

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/4Y4TZLGTWRAKBWP5Y26SX6NFQR \
  | 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: e6393cacd3b440a0d9fdc6bd2bf9a58465b75873d626c24f626bf7f88aa58078

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f48453f762418e1a4bcab0161b7b4e95ff63f24ca312299fcf2787b0b93a602",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-01T14:17:37Z",
    "title_canon_sha256": "95d211bca0597b36f6e326922a5bc1da1d60709b0ce76067772a47c05ff8f30c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00255",
    "kind": "arxiv",
    "version": 2
  }
}