Pith Number

pith:SM7Y7GKO

pith:2014:SM7Y7GKO2AYC4WJJR46UKAZCBZ

not attested not anchored not stored refs pending

Reverse Engineering Point Clouds to Fit Tensor Product B-Spline Surfaces by Blending Local Fits

Elaine Cohen, Lavanya Sita Tekumalla

arxiv:1411.5993 v1 · 2014-11-21 · 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{SM7Y7GKO2AYC4WJJR46UKAZCBZ}

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	2026-05-18T02:33:01.761326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

933f8f994ed0302e59298f3d4503220e7097ca286bd55207bdbeaebff6a4b589

Aliases

arxiv: 1411.5993 · arxiv_version: 1411.5993v1 · doi: 10.48550/arxiv.1411.5993 · pith_short_12: SM7Y7GKO2AYC · pith_short_16: SM7Y7GKO2AYC4WJJ · pith_short_8: SM7Y7GKO

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/SM7Y7GKO2AYC4WJJR46UKAZCBZ \
  | 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: 933f8f994ed0302e59298f3d4503220e7097ca286bd55207bdbeaebff6a4b589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b27abf004df593204c2d21ae0a5f8533b5f13567510ff288812b2fbc0815b06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2014-11-21T19:37:27Z",
    "title_canon_sha256": "073ebba22aa431d21c174bcbb351b65ec3999ecb834dc152ca615601ff1e8154"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5993",
    "kind": "arxiv",
    "version": 1
  }
}