Pith Number

pith:GPUESFTY

pith:2016:GPUESFTYPFAY42UMHMDH3EHT4A

not attested not anchored not stored refs pending

On a new kind of Ansatz Spaces for Matrix Polynomials

Heike Fassbender, Philip Saltenberger

arxiv:1610.05988 v2 · 2016-10-19 · math.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{GPUESFTYPFAY42UMHMDH3EHT4A}

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	2026-05-18T00:50:04.168487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33e849167879418e6a8c3b067d90f3e0274932e81a17f39c57d53755ae6376b4

Aliases

arxiv: 1610.05988 · arxiv_version: 1610.05988v2 · doi: 10.48550/arxiv.1610.05988 · pith_short_12: GPUESFTYPFAY · pith_short_16: GPUESFTYPFAY42UM · pith_short_8: GPUESFTY

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/GPUESFTYPFAY42UMHMDH3EHT4A \
  | 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: 33e849167879418e6a8c3b067d90f3e0274932e81a17f39c57d53755ae6376b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e88fa01c36442cc3c70fdf4b4522ea1fdd970da3c23ddc861b75733981be516",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-10-19T12:48:02Z",
    "title_canon_sha256": "cee983dc5213688e42f2e118d1f2188b50282bfc0005d876345e7bf4c079b36b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05988",
    "kind": "arxiv",
    "version": 2
  }
}