Pith Number

pith:EY4A2IU6

pith:2015:EY4A2IU6SGTG37AMPJNVZBXH2R

not attested not anchored not stored refs pending

A Block Krylov Subspace Implementation of the Time-Parallel Paraexp Method and its Extension for Nonlinear Partial Differential Equations

B. J. Geurts, G. L. Kooij, M. A. Botchev

arxiv:1509.04567 v1 · 2015-09-15 · 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{EY4A2IU6SGTG37AMPJNVZBXH2R}

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	2026-05-18T01:32:58.553107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26380d229e91a66dfc0c7a5b5c86e7d459fd5bce11bb5c53646ee45fd2a3dad2

Aliases

arxiv: 1509.04567 · arxiv_version: 1509.04567v1 · doi: 10.48550/arxiv.1509.04567 · pith_short_12: EY4A2IU6SGTG · pith_short_16: EY4A2IU6SGTG37AM · pith_short_8: EY4A2IU6

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/EY4A2IU6SGTG37AMPJNVZBXH2R \
  | 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: 26380d229e91a66dfc0c7a5b5c86e7d459fd5bce11bb5c53646ee45fd2a3dad2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1783a52b149422e202c24593aec65522090f33848ad7538a35a0b8f90bcacad9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-09-15T14:04:13Z",
    "title_canon_sha256": "bd43f8133f288720494289acaa01e0db7458200ee9bff9b9b36408399f8ed3ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04567",
    "kind": "arxiv",
    "version": 1
  }
}