Pith Number

pith:OQLPLTF5

pith:2017:OQLPLTF55EUBVGN3HCN5AKTOG7

not attested not anchored not stored refs pending

A Product to Sum Approach for Matrix Filling in a Hierarchical Finite-Element Method

Ehsan Khodapanah

arxiv:1703.09619 v1 · 2017-03-27 · 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{OQLPLTF55EUBVGN3HCN5AKTOG7}

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	2026-05-18T00:47:44.042409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7416f5ccbde9281a99bb389bd02a6e37e7282c92bae6a6f0768e01e72cc47e65

Aliases

arxiv: 1703.09619 · arxiv_version: 1703.09619v1 · doi: 10.48550/arxiv.1703.09619 · pith_short_12: OQLPLTF55EUB · pith_short_16: OQLPLTF55EUBVGN3 · pith_short_8: OQLPLTF5

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/OQLPLTF55EUBVGN3HCN5AKTOG7 \
  | 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: 7416f5ccbde9281a99bb389bd02a6e37e7282c92bae6a6f0768e01e72cc47e65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36d6835fe6c35f3bd75c6f088174a4a5a75555020c9382c4a3ebe28d6e6a2c2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-03-27T09:35:56Z",
    "title_canon_sha256": "86a69152752511eacaba31db7298a8cd0f2a6789ec9443d164d90b9382f2639b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09619",
    "kind": "arxiv",
    "version": 1
  }
}