Pith Number

pith:DSNGPOQU

pith:2014:DSNGPOQU55YNQJKE6ZNAPUFDHH

not attested not anchored not stored refs pending

An Optimized and Scalable Eigensolver for Sequences of Eigenvalue Problems

(2) Forschungszentrum Juelich, 3) ((1) The University of Manchester, (3) AICES, Daniel Wortmann (2), Edoardo Di Napoli (2, Mario Berljafa (1), RWTH Aachen)

arxiv:1404.4161 v2 · 2014-04-16 · cs.MS · cs.DC · 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{DSNGPOQU55YNQJKE6ZNAPUFDHH}

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	2026-05-18T02:48:17.078752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c9a67ba14ef70d82544f65a07d0a339fa23e40c5d45f50ec97e9ae6c63eb9a3

Aliases

arxiv: 1404.4161 · arxiv_version: 1404.4161v2 · doi: 10.48550/arxiv.1404.4161 · pith_short_12: DSNGPOQU55YN · pith_short_16: DSNGPOQU55YNQJKE · pith_short_8: DSNGPOQU

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/DSNGPOQU55YNQJKE6ZNAPUFDHH \
  | 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: 1c9a67ba14ef70d82544f65a07d0a339fa23e40c5d45f50ec97e9ae6c63eb9a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a86f3a14cfef1811f38a563ef8b9deccf85e0e60ff66614e269f35149c13d7b5",
    "cross_cats_sorted": [
      "cs.DC",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2014-04-16T08:09:56Z",
    "title_canon_sha256": "7235b1f337d747a1041a197a06618428a8843dbb332f2246a8fadbbe0fa3ea8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4161",
    "kind": "arxiv",
    "version": 2
  }
}