Pith Number

pith:TWRFOQ5N

pith:2017:TWRFOQ5N44HCELUU6YGBSS5TNK

not attested not anchored not stored refs pending

Dimension and basis construction for $C^{2}$-smooth isogeometric spline spaces over bilinear-like $G^{2}$ two-patch parameterizations

Mario Kapl, Vito Vitrih

arxiv:1707.03145 v2 · 2017-07-11 · 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{TWRFOQ5N44HCELUU6YGBSS5TNK}

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	2026-05-18T00:39:52.231296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9da25743ade70e222e94f60c194bb36a8fe2dee792236e486a0250fcdba641b0

Aliases

arxiv: 1707.03145 · arxiv_version: 1707.03145v2 · doi: 10.48550/arxiv.1707.03145 · pith_short_12: TWRFOQ5N44HC · pith_short_16: TWRFOQ5N44HCELUU · pith_short_8: TWRFOQ5N

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/TWRFOQ5N44HCELUU6YGBSS5TNK \
  | 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: 9da25743ade70e222e94f60c194bb36a8fe2dee792236e486a0250fcdba641b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66744b33740dd7372adcf368d4d5d51a82461d4c2973aa720a69fd1a3d8b9b25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-11T06:41:01Z",
    "title_canon_sha256": "b684dd41f315eb39ab49d8ab713bfe0bba5320541867d70f6ebdadc45d352c0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03145",
    "kind": "arxiv",
    "version": 2
  }
}