Pith Number

pith:BPJRY7FA

pith:2019:BPJRY7FAU4J7ST5ASSZ5POU3VD

not attested not anchored not stored refs pending

Partitioned Exponential Methods for Coupled Multiphysics Systems

Adrian Sandu, Mahesh Narayanamurthi

arxiv:1908.09434 v2 · 2019-08-26 · math.NA · cs.CE · 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{BPJRY7FAU4J7ST5ASSZ5POU3VD}

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	2026-07-05T00:02:50.327578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bd31c7ca0a713f94fa094b3d7ba9ba8e1e2360727e7d8d4a4c36302d6773835

Aliases

arxiv: 1908.09434 · arxiv_version: 1908.09434v2 · doi: 10.48550/arxiv.1908.09434 · pith_short_12: BPJRY7FAU4J7 · pith_short_16: BPJRY7FAU4J7ST5A · pith_short_8: BPJRY7FA

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/BPJRY7FAU4J7ST5ASSZ5POU3VD \
  | 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: 0bd31c7ca0a713f94fa094b3d7ba9ba8e1e2360727e7d8d4a4c36302d6773835

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c487067e5d96a88cc98f39ae2b18a5a7463770e8f0d8b9506941f9ea24b5f960",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-08-26T01:49:04Z",
    "title_canon_sha256": "ae4bd9d70c9a6a7bf043ac226185820c1976d7af92865c49e6f485edf42c547f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09434",
    "kind": "arxiv",
    "version": 2
  }
}