Pith Number

pith:ESAHROL5

pith:2014:ESAHROL54WYPJJQIJY6VMXBFPN

not attested not anchored not stored refs pending

Computing the eigenvalues of symmetric H2-matrices by slicing the spectrum

Knut Reimer, Peter Benner, Steffen B\"orm, Thomas Mach

arxiv:1403.4142 v2 · 2014-03-17 · 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{ESAHROL54WYPJJQIJY6VMXBFPN}

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	2026-05-18T02:25:26.563933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

248078b97de5b0f4a6084e3d565c257b5bf14baf60852cb68f7e1db3f7de3372

Aliases

arxiv: 1403.4142 · arxiv_version: 1403.4142v2 · doi: 10.48550/arxiv.1403.4142 · pith_short_12: ESAHROL54WYP · pith_short_16: ESAHROL54WYPJJQI · pith_short_8: ESAHROL5

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/ESAHROL54WYPJJQIJY6VMXBFPN \
  | 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: 248078b97de5b0f4a6084e3d565c257b5bf14baf60852cb68f7e1db3f7de3372

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50dfc45238476ba13f2d78c5ce16845c3f29f8f625ea6f98d11e103a573b4728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-03-17T15:58:10Z",
    "title_canon_sha256": "3886016de7beb13e5e710b5df361cce109c751e0c47754a492191f38043ec2e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4142",
    "kind": "arxiv",
    "version": 2
  }
}