Pith Number

pith:CP73AJZY

pith:2025:CP73AJZY66OR6EMQ2N4BKTGYEB

not attested not anchored not stored refs pending

Multiprecision computations with Schwarz methods

Daniel B. Szyld, Michal Outrata

arxiv:2509.20937 v3 · 2025-09-25 · 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{CP73AJZY66OR6EMQ2N4BKTGYEB}

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	2026-07-24T00:23:04.748718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13ffb02738f79d1f1190d378154cd82052ff05f09a5cd707af37e6f95609f115

Aliases

arxiv: 2509.20937 · arxiv_version: 2509.20937v3 · doi: 10.48550/arxiv.2509.20937 · pith_short_12: CP73AJZY66OR · pith_short_16: CP73AJZY66OR6EMQ · pith_short_8: CP73AJZY

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/CP73AJZY66OR6EMQ2N4BKTGYEB \
  | 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: 13ffb02738f79d1f1190d378154cd82052ff05f09a5cd707af37e6f95609f115

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa6d12cbd92a8cf8a580412f2a53da2fac5b694221eb3034e199488cddaf476b",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-09-25T09:22:47Z",
    "title_canon_sha256": "83d4a464844cb592460b2f9bc1368bddfc019af606b3f62e0aedf12d221f42c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.20937",
    "kind": "arxiv",
    "version": 3
  }
}