Pith Number

pith:KLSR5YOF

pith:2016:KLSR5YOFUCPRNYVWSAC6QD2KY6

not attested not anchored not stored refs pending

A modified implementation of MINRES to monitor residual subvector norms for block systems

Kirk M. Soodhalter, Roland Herzog

arxiv:1603.04475 v2 · 2016-03-14 · 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{KLSR5YOFUCPRNYVWSAC6QD2KY6}

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	2026-05-18T01:05:12.547768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52e51ee1c5a09f16e2b69005e80f4ac7a49b7d129231bb24492ccaf873bf1bbf

Aliases

arxiv: 1603.04475 · arxiv_version: 1603.04475v2 · doi: 10.48550/arxiv.1603.04475 · pith_short_12: KLSR5YOFUCPR · pith_short_16: KLSR5YOFUCPRNYVW · pith_short_8: KLSR5YOF

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/KLSR5YOFUCPRNYVWSAC6QD2KY6 \
  | 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: 52e51ee1c5a09f16e2b69005e80f4ac7a49b7d129231bb24492ccaf873bf1bbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "728471c296d8f66a4fd280e283537a4dd2fa6a5f168aec635700d289af24fdf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-03-14T21:05:43Z",
    "title_canon_sha256": "6a780882c9ac0f13066d949384dc0cf2e3d30fa3d112bd7d887007ac0ea33996"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.04475",
    "kind": "arxiv",
    "version": 2
  }
}