Pith Number

pith:M7XKZ74U

pith:2019:M7XKZ74UG7EYIZ5IWVJHM2ZWL6

not attested not anchored not stored refs pending

Manifold-based isogeometric analysis basis functions with prescribed sharp features

Fehmi Cirak, Qiaoling Zhang

arxiv:1904.03258 v2 · 2019-04-05 · math.NA · cs.GR · 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{M7XKZ74UG7EYIZ5IWVJHM2ZWL6}

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	2026-07-05T00:41:25.999332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67eeacff9437c98467a8b552766b365fbab45d0b5d95592904b1a6a08b92fd0d

Aliases

arxiv: 1904.03258 · arxiv_version: 1904.03258v2 · doi: 10.48550/arxiv.1904.03258 · pith_short_12: M7XKZ74UG7EY · pith_short_16: M7XKZ74UG7EYIZ5I · pith_short_8: M7XKZ74U

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/M7XKZ74UG7EYIZ5IWVJHM2ZWL6 \
  | 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: 67eeacff9437c98467a8b552766b365fbab45d0b5d95592904b1a6a08b92fd0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b06b420c1ce3444386d0c7b2d41efd7ff23e3dd3b679bd2de70a1f6989965f20",
    "cross_cats_sorted": [
      "cs.GR",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-05T20:04:43Z",
    "title_canon_sha256": "5fc201c0fc476f79bb10bba405bdc05ec223854e2742c9d5e51d0629c0df7950"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03258",
    "kind": "arxiv",
    "version": 2
  }
}