Pith Number

pith:AWBTZIGX

pith:2019:AWBTZIGX5ZPRN4URXZNW6DUJYX

not attested not anchored not stored refs pending

Implicit Progressive-Iterative Approximation for Curve and Surface Reconstruction

Hongwei Lin, Yusuf Fatihu Hamza, Zihao Li

arxiv:1909.00551 v1 · 2019-09-02 · 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{AWBTZIGX5ZPRN4URXZNW6DUJYX}

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	2026-07-05T00:01:10.704591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05833ca0d7ee5f16f291be5b6f0e89c5ee49843147fb773a04ffbf1292decf91

Aliases

arxiv: 1909.00551 · arxiv_version: 1909.00551v1 · doi: 10.48550/arxiv.1909.00551 · pith_short_12: AWBTZIGX5ZPR · pith_short_16: AWBTZIGX5ZPRN4UR · pith_short_8: AWBTZIGX

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/AWBTZIGX5ZPRN4URXZNW6DUJYX \
  | 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: 05833ca0d7ee5f16f291be5b6f0e89c5ee49843147fb773a04ffbf1292decf91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc0ab7ae72ea19e8c7f748f1a41c0ffbbffa38a47b1f1d013ae0b1588ee5de20",
    "cross_cats_sorted": [
      "cs.GR",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-09-02T05:33:50Z",
    "title_canon_sha256": "ad74140aeca6e84897fa5013aab95302e4eb71dd05828f15a8d9f0a5db395085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00551",
    "kind": "arxiv",
    "version": 1
  }
}