Pith Number

pith:BO5WQQXR

pith:2018:BO5WQQXR4EGUB52YMP33ALSKCD

not attested not anchored not stored refs pending

A gradient method in a Hilbert space with an optimized inner product: achieving a Newton-like convergence

Arian Novruzi (Department of Mathematics, Bartosz Protas (Department of Mathematics, McMaster University), Statistics, University of Ottawa)

arxiv:1803.02414 v1 · 2018-03-06 · 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{BO5WQQXR4EGUB52YMP33ALSKCD}

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	2026-05-18T00:21:50.358296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bbb6842f1e10d40f75863f7b02e4a10ced4772705c3ee588a06793e55a83561

Aliases

arxiv: 1803.02414 · arxiv_version: 1803.02414v1 · doi: 10.48550/arxiv.1803.02414 · pith_short_12: BO5WQQXR4EGU · pith_short_16: BO5WQQXR4EGUB52Y · pith_short_8: BO5WQQXR

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/BO5WQQXR4EGUB52YMP33ALSKCD \
  | 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: 0bbb6842f1e10d40f75863f7b02e4a10ced4772705c3ee588a06793e55a83561

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dae28e09b412865d383ad09a3a2ac4818c9e6cfc96c3c5ab7a00f4a738b211fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-06T20:23:27Z",
    "title_canon_sha256": "0777b9a5bb8af06b9bded9d08b05481408d7c2a3a2aab52397c78d21d33d522d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02414",
    "kind": "arxiv",
    "version": 1
  }
}