Pith Number

pith:D2WRONUR

pith:2018:D2WRONUREHCUUZS447U7ATZVRZ

not attested not anchored not stored refs pending

Deep Learning Parametrization for B-Spline Curve Approximation

Georg Umlauf, Matthias O. Franz, Pascal Laube

arxiv:1807.08304 v1 · 2018-07-22 · cs.CG · cs.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2WRONUREHCUUZS447U7ATZVRZ}

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	2026-05-18T00:10:08.494349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ead17369121c54a665ce7e9f04f358e77a6bc88734511f1f7e9de8af7cc98fe

Aliases

arxiv: 1807.08304 · arxiv_version: 1807.08304v1 · doi: 10.48550/arxiv.1807.08304 · pith_short_12: D2WRONUREHCU · pith_short_16: D2WRONUREHCUUZS4 · pith_short_8: D2WRONUR

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/D2WRONUREHCUUZS447U7ATZVRZ \
  | 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: 1ead17369121c54a665ce7e9f04f358e77a6bc88734511f1f7e9de8af7cc98fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b313e24302483f1fd8bcbe490e4a71c0c61373d850280ee4cf0f44d54c2b6f8",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-07-22T15:41:21Z",
    "title_canon_sha256": "c9ed5b9d17419d75857641ffbe0f5bd938290227aa74e93412c839f68e37585c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08304",
    "kind": "arxiv",
    "version": 1
  }
}