Pith Number

pith:UCFV4EHP

pith:2013:UCFV4EHPU5USBYRXBDQS5HGI6K

not attested not anchored not stored refs pending

Multilevel Preconditioning of Discontinuous-Galerkin Spectral Element Methods, Part I: Geometrically Conforming Meshes

Claudio Canuto, Kolja Brix, Martin Campos Pinto, Wolfgang Dahmen

arxiv:1301.6768 v2 · 2013-01-28 · 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{UCFV4EHPU5USBYRXBDQS5HGI6K}

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	2026-05-18T02:52:04.294345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a08b5e10efa76920e23708e12e9cc8f289934949312dc9125e0a307d0912da2b

Aliases

arxiv: 1301.6768 · arxiv_version: 1301.6768v2 · doi: 10.48550/arxiv.1301.6768 · pith_short_12: UCFV4EHPU5US · pith_short_16: UCFV4EHPU5USBYRX · pith_short_8: UCFV4EHP

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/UCFV4EHPU5USBYRXBDQS5HGI6K \
  | 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: a08b5e10efa76920e23708e12e9cc8f289934949312dc9125e0a307d0912da2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "198b4018fcde38104bb93ab331156845fd38ddcac674bbb077135d4349d7457d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-01-28T21:03:24Z",
    "title_canon_sha256": "f07a1507ecc9bbacaa11b7dcad81af15359ff249d734f52db96c1aaea01f30b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6768",
    "kind": "arxiv",
    "version": 2
  }
}