Pith Number

pith:37N6GQD7

pith:2015:37N6GQD76UUQVTXERSDWF4ZEZO

not attested not anchored not stored refs pending

FEAST Eigensolver for non-Hermitian Problems

Eric Polizzi, James Kestyn, Ping Tak Peter Tang

arxiv:1506.04463 v1 · 2015-06-15 · math.NA · cs.MS · cs.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{37N6GQD76UUQVTXERSDWF4ZEZO}

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	2026-05-18T01:49:54.508275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfdbe3407ff5290acee48c8762f324cb9d71848a0c743ca38e4b4920d5a0d540

Aliases

arxiv: 1506.04463 · arxiv_version: 1506.04463v1 · doi: 10.48550/arxiv.1506.04463 · pith_short_12: 37N6GQD76UUQ · pith_short_16: 37N6GQD76UUQVTXE · pith_short_8: 37N6GQD7

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/37N6GQD76UUQVTXERSDWF4ZEZO \
  | 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: dfdbe3407ff5290acee48c8762f324cb9d71848a0c743ca38e4b4920d5a0d540

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d998f3fa43d95a6dddd36d2e26ec14bb960ec4266dca0281b143d7c5482517a9",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-06-15T02:55:29Z",
    "title_canon_sha256": "6aa5777a627027f2519daf5fc935cf474a0539c6b4015c716c0be4a40bfc7055"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04463",
    "kind": "arxiv",
    "version": 1
  }
}