Pith Number

pith:IM3ENXPA

pith:2012:IM3ENXPAOIJLAFGAK7ZHFGOUJP

not attested not anchored not stored refs pending

Fast and accurate clothoid fitting

Enrico Bertolazzi, Marco Frego

arxiv:1209.0910 v1 · 2012-09-05 · 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{IM3ENXPAOIJLAFGAK7ZHFGOUJP}

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	2026-05-18T01:11:03.667715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

433646dde07212b014c057f27299d44bd222cef71802d4bfcc7db1f0f16123be

Aliases

arxiv: 1209.0910 · arxiv_version: 1209.0910v1 · doi: 10.48550/arxiv.1209.0910 · pith_short_12: IM3ENXPAOIJL · pith_short_16: IM3ENXPAOIJLAFGA · pith_short_8: IM3ENXPA

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/IM3ENXPAOIJLAFGAK7ZHFGOUJP \
  | 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: 433646dde07212b014c057f27299d44bd222cef71802d4bfcc7db1f0f16123be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e6c89dfc4e716ba3cc6dbe42c081432592a95fc27174a1e3dfc35ea74731cff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-09-05T09:49:19Z",
    "title_canon_sha256": "42335f4ade2735ec77718afc9ae97a8781f7500f1c7dd9cd602bd349f61372b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0910",
    "kind": "arxiv",
    "version": 1
  }
}