Pith Number

pith:O7OCTORW

pith:2020:O7OCTORW4JYZJ33VTOOXMYF64S

not attested not anchored not stored refs pending

A rational Even-IRA algorithm for the solution of T-even polynomial eigenvalue problems

Heike Fassbender, Peter Benner, Philip Saltenberger

arxiv:2009.01762 v1 · 2020-09-03 · 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{O7OCTORW4JYZJ33VTOOXMYF64S}

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	2026-07-05T01:32:53.057925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77dc29ba36e27194ef759b9d7660bee485b27eeb5cfceb5728696b6853a07861

Aliases

arxiv: 2009.01762 · arxiv_version: 2009.01762v1 · doi: 10.48550/arxiv.2009.01762 · pith_short_12: O7OCTORW4JYZ · pith_short_16: O7OCTORW4JYZJ33V · pith_short_8: O7OCTORW

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/O7OCTORW4JYZJ33VTOOXMYF64S \
  | 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: 77dc29ba36e27194ef759b9d7660bee485b27eeb5cfceb5728696b6853a07861

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96c3426254df275fce1fc9e0c1436be5e6a715c0c18abd91cfa60e8676ce164d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-09-03T16:03:04Z",
    "title_canon_sha256": "71602d44aa6489e84c9c7798afad9a3fe3eb57b28b186ff357c8eeefe3325438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.01762",
    "kind": "arxiv",
    "version": 1
  }
}