Pith Number

pith:D4SVTBQS

pith:2018:D4SVTBQS7HDNWZKGTTSBMGKAYN

not attested not anchored not stored refs pending

Generalized eigenvalue methods for Gaussian quadrature rules

Cordian Riener, Cynthia Vinzant, Grigoriy Blekherman, Mario Kummer, Markus Schweighofer

arxiv:1805.12047 v1 · 2018-05-30 · math.NA · cs.NA · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D4SVTBQS7HDNWZKGTTSBMGKAYN}

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	2026-06-04T19:11:56.219020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f25598612f9c6db65469ce4161940c35ea94d8463a4b900b45e352bda3d711f

Aliases

arxiv: 1805.12047 · arxiv_version: 1805.12047v1 · doi: 10.48550/arxiv.1805.12047 · pith_short_12: D4SVTBQS7HDN · pith_short_16: D4SVTBQS7HDNWZKG · pith_short_8: D4SVTBQS

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/D4SVTBQS7HDNWZKGTTSBMGKAYN \
  | 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: 1f25598612f9c6db65469ce4161940c35ea94d8463a4b900b45e352bda3d711f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0847b683214d7c74e75f8b9942955c0c5152c19c857cf544fbdfb7891c444fd6",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-30T15:58:01Z",
    "title_canon_sha256": "7ea784d19af88395bda902acfb0a5e821a451772c0f9fb3ff9b14479f9eb74b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.12047",
    "kind": "arxiv",
    "version": 1
  }
}