Pith Number

pith:C7ONL5XA

pith:2019:C7ONL5XAP5ID46Q3RHMVXEK6ZZ

not attested not anchored not stored refs pending

Algorithms and data structures for matrix-free finite element operators with MPI-parallel sparse multi-vectors

Denis Davydov, Martin Kronbichler

arxiv:1907.01005 v1 · 2019-07-01 · cs.MS · cs.DS · cs.NA · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7ONL5XAP5ID46Q3RHMVXEK6ZZ}

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	2026-05-17T23:41:41.481780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17dcd5f6e07f503e7a1b89d95b915ece775c94ba76d268c7c3c486ac9c9518e8

Aliases

arxiv: 1907.01005 · arxiv_version: 1907.01005v1 · doi: 10.48550/arxiv.1907.01005 · pith_short_12: C7ONL5XAP5ID · pith_short_16: C7ONL5XAP5ID46Q3 · pith_short_8: C7ONL5XA

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/C7ONL5XAP5ID46Q3RHMVXEK6ZZ \
  | 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: 17dcd5f6e07f503e7a1b89d95b915ece775c94ba76d268c7c3c486ac9c9518e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5838472c57ab539ddb2cc5c8fb958a8cefcba0570a8605a97f35ef637520ca2",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.NA",
      "math.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2019-07-01T18:24:46Z",
    "title_canon_sha256": "93463bf118167f008f4b0d559c91d7539065e2fc2b306a7abdd2edb3aee73026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01005",
    "kind": "arxiv",
    "version": 1
  }
}