Pith Number

pith:SJ4GTJ5O

pith:2018:SJ4GTJ5OPUWOKTYZSLB6KIZZWM

not attested not anchored not stored refs pending

Broyden's method for nonlinear eigenproblems

Elias Jarlebring

arxiv:1802.07322 v1 · 2018-02-20 · 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{SJ4GTJ5OPUWOKTYZSLB6KIZZWM}

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	2026-05-18T00:22:50.465637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

927869a7ae7d2ce54f1992c3e52339b32b013c494d2b83e12e5cde9a17df49fd

Aliases

arxiv: 1802.07322 · arxiv_version: 1802.07322v1 · doi: 10.48550/arxiv.1802.07322 · pith_short_12: SJ4GTJ5OPUWO · pith_short_16: SJ4GTJ5OPUWOKTYZ · pith_short_8: SJ4GTJ5O

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/SJ4GTJ5OPUWOKTYZSLB6KIZZWM \
  | 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: 927869a7ae7d2ce54f1992c3e52339b32b013c494d2b83e12e5cde9a17df49fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78bb00024970e1803e82b446e3cc777f7f58bcc563c9e2c21da714178520b82c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-20T20:49:03Z",
    "title_canon_sha256": "798cfec642893801794a3190e2ad38e17bb49428a85107e775223f767cc002dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07322",
    "kind": "arxiv",
    "version": 1
  }
}