Pith Number

pith:NWMEVC5K

pith:2014:NWMEVC5KFRGXX2F6J42VIU3M7T

not attested not anchored not stored refs pending

Projection onto simplicial cones by a semi-smooth Newton method

O. P. Ferreira, S. Z. N\'emeth

arxiv:1404.2427 v1 · 2014-04-09 · math.OC · 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{NWMEVC5KFRGXX2F6J42VIU3M7T}

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	2026-05-18T02:54:31.539460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d984a8baa2c4d7be8be4f3554536cfcc2ab491ad2d4415ad244a590e2fc14c8

Aliases

arxiv: 1404.2427 · arxiv_version: 1404.2427v1 · doi: 10.48550/arxiv.1404.2427 · pith_short_12: NWMEVC5KFRGX · pith_short_16: NWMEVC5KFRGXX2F6 · pith_short_8: NWMEVC5K

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/NWMEVC5KFRGXX2F6J42VIU3M7T \
  | 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: 6d984a8baa2c4d7be8be4f3554536cfcc2ab491ad2d4415ad244a590e2fc14c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdf3aa8edda02f931897fc0bd4fa725cf3a7588434f4aa7c343e1a0bd2eef1d3",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-04-09T10:40:05Z",
    "title_canon_sha256": "c6d15eab7320b2f5ad7ba9020bbb0d5cc12204a5394118956fb60e928480a7ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2427",
    "kind": "arxiv",
    "version": 1
  }
}