Pith Number

pith:NOE2TGYA

pith:2020:NOE2TGYALMYVWUMOXX6QFPD6SS

not attested not anchored not stored refs pending

Subspace method for multiparameter-eigenvalue problems based on tensor-train representations

Karl Meerbergen, Koen Ruymbeek, Wim Michiels

arxiv:2012.00815 v1 · 2020-12-01 · math.NA · cs.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{NOE2TGYALMYVWUMOXX6QFPD6SS}

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	2026-07-05T01:56:20.987990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b89a99b005b315b518ebdfd02bc7e94aa66138182cb8ce73e47110fef976ce0

Aliases

arxiv: 2012.00815 · arxiv_version: 2012.00815v1 · doi: 10.48550/arxiv.2012.00815 · pith_short_12: NOE2TGYALMYV · pith_short_16: NOE2TGYALMYVWUMO · pith_short_8: NOE2TGYA

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/NOE2TGYALMYVWUMOXX6QFPD6SS \
  | 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: 6b89a99b005b315b518ebdfd02bc7e94aa66138182cb8ce73e47110fef976ce0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa4dd7550df14b0d9ae586d7dd7ae73bb455b6d8ab0b3e1376cbd902d598f280",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-12-01T20:26:45Z",
    "title_canon_sha256": "d9691ad64b03eb63af4c16bc9177b5962cab9190da0255d12cd2fcb7b658ce23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00815",
    "kind": "arxiv",
    "version": 1
  }
}