Pith Number

pith:O4GKOS3R

pith:2019:O4GKOS3R3KCAQJFXIBTJENZ6A2

not attested not anchored not stored refs pending

DeepSpline: Data-Driven Reconstruction of Parametric Curves and Surfaces

Chengcheng Tang, Hao Su, Jiahui Huang, Jun Gao, Leonidas J. Guibas, Vignesh Ganapathi-Subramanian

arxiv:1901.03781 v1 · 2019-01-12 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O4GKOS3R3KCAQJFXIBTJENZ6A2}

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	2026-05-17T23:56:27.069575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

770ca74b71da840824b7406692373e06987174fc676c781c8ff672114cd35898

Aliases

arxiv: 1901.03781 · arxiv_version: 1901.03781v1 · doi: 10.48550/arxiv.1901.03781 · pith_short_12: O4GKOS3R3KCA · pith_short_16: O4GKOS3R3KCAQJFX · pith_short_8: O4GKOS3R

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/O4GKOS3R3KCAQJFXIBTJENZ6A2 \
  | 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: 770ca74b71da840824b7406692373e06987174fc676c781c8ff672114cd35898

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ed0865c7c79b56eaee88538574258d16242e3e239390e8893f3602819c5f536",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-01-12T02:20:09Z",
    "title_canon_sha256": "49c3e23bb17a54f2f1a79eb310ef1e5211b3d66d4d9dcb8ed012280927303de9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03781",
    "kind": "arxiv",
    "version": 1
  }
}