Pith Number

pith:CFDAZ3ZP

pith:2017:CFDAZ3ZPEXGWHPBH3IBLHOHVV5

not attested not anchored not stored refs pending

Approximate tensor-product preconditioners for very high order discontinuous Galerkin methods

Per-Olof Persson, Will Pazner

arxiv:1704.04549 v2 · 2017-04-14 · 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{CFDAZ3ZPEXGWHPBH3IBLHOHVV5}

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	2026-05-18T00:26:12.863601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11460cef2f25cd63bc27da02b3b8f5af71259cecb13116095d32d45e67262795

Aliases

arxiv: 1704.04549 · arxiv_version: 1704.04549v2 · doi: 10.48550/arxiv.1704.04549 · pith_short_12: CFDAZ3ZPEXGW · pith_short_16: CFDAZ3ZPEXGWHPBH · pith_short_8: CFDAZ3ZP

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/CFDAZ3ZPEXGWHPBH3IBLHOHVV5 \
  | 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: 11460cef2f25cd63bc27da02b3b8f5af71259cecb13116095d32d45e67262795

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d2f584a5c9527caa440d9ed05ee120f42e21575b9693dc6140bf23869c27b6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-04-14T22:12:53Z",
    "title_canon_sha256": "a0c1be44ad0c6c6f9ab6fe1d43e4c9daa5e864a14ef0ff0cb928017bb6de57cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04549",
    "kind": "arxiv",
    "version": 2
  }
}