Pith Number

pith:OFL6SY4V

pith:2016:OFL6SY4VCJTOWTR75FZAOOBDZW

not attested not anchored not stored refs pending

Composing Scalable Nonlinear Algebraic Solvers

Barry F. Smith, Matthew G. Knepley, Peter R. Brune, Xuemin Tu

arxiv:1607.04254 v1 · 2016-07-14 · math.NA · cs.MS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFL6SY4VCJTOWTR75FZAOOBDZW}

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	2026-05-18T01:11:03.751461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7157e963951266eb4e3fe972073823cdaf21b7e6e03f5c26a2aea66ad3761576

Aliases

arxiv: 1607.04254 · arxiv_version: 1607.04254v1 · doi: 10.48550/arxiv.1607.04254 · pith_short_12: OFL6SY4VCJTO · pith_short_16: OFL6SY4VCJTOWTR7 · pith_short_8: OFL6SY4V

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/OFL6SY4VCJTOWTR75FZAOOBDZW \
  | 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: 7157e963951266eb4e3fe972073823cdaf21b7e6e03f5c26a2aea66ad3761576

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9235ba02ec93c944bb123b74e75284d4542e175c2b864179bd2482a61ee7d535",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-14T19:21:43Z",
    "title_canon_sha256": "9f57d975047a232948735af64dbfbbc65c3e7e38a537ef3d0422cad1cb2482bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.04254",
    "kind": "arxiv",
    "version": 1
  }
}