Pith Number

pith:IKTBQQDE

pith:2017:IKTBQQDETETI7Z2UQYOX3JKOMQ

not attested not anchored not stored refs pending

Efficient mass and stiffness matrix assembly via weighted Gaussian quadrature rules for B-splines

Michael Barto\v{n}, Quanling Deng, Victor Calo, Vladimir Puzyrev

arxiv:1710.01048 v1 · 2017-10-03 · 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{IKTBQQDETETI7Z2UQYOX3JKOMQ}

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	2026-05-18T00:33:45.426898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42a618406499268fe754861d7da54e640a4302261e22665379a51d20d8bcac8f

Aliases

arxiv: 1710.01048 · arxiv_version: 1710.01048v1 · doi: 10.48550/arxiv.1710.01048 · pith_short_12: IKTBQQDETETI · pith_short_16: IKTBQQDETETI7Z2U · pith_short_8: IKTBQQDE

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/IKTBQQDETETI7Z2UQYOX3JKOMQ \
  | 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: 42a618406499268fe754861d7da54e640a4302261e22665379a51d20d8bcac8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2255187e64c3879bfa4617fc1bcd9dce9cf11e324e5fcdeb40dfb95eab006b0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-03T09:25:08Z",
    "title_canon_sha256": "40c8d3b68d4f2eecf63a2a1e6cc07732ccce50e5a9a150436eb55416d19b7eb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.01048",
    "kind": "arxiv",
    "version": 1
  }
}