Pith Number

pith:MO2K63V7

pith:2013:MO2K63V7ICBF6LN3VEFFIUTHIO

not attested not anchored not stored refs pending

B-spline normal multi-scale transforms for planar curves

Stanislav Harizanov

arxiv:1311.4387 v1 · 2013-11-18 · math.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{MO2K63V7ICBF6LN3VEFFIUTHIO}

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	2026-05-18T03:06:52.858753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63b4af6ebf40825f2dbba90a54526743bb8994d6111b049045fc789998f3aabe

Aliases

arxiv: 1311.4387 · arxiv_version: 1311.4387v1 · doi: 10.48550/arxiv.1311.4387 · pith_short_12: MO2K63V7ICBF · pith_short_16: MO2K63V7ICBF6LN3 · pith_short_8: MO2K63V7

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/MO2K63V7ICBF6LN3VEFFIUTHIO \
  | 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: 63b4af6ebf40825f2dbba90a54526743bb8994d6111b049045fc789998f3aabe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ab5c564a40ada4147add70c8c13066682c4100256e99f347193070c5c3e0973",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-11-18T14:14:44Z",
    "title_canon_sha256": "28311668c22023b1f08e669bcbfadf92b2173734e48264405ae96be0f2b045c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4387",
    "kind": "arxiv",
    "version": 1
  }
}