Pith Number

pith:XBN6M7KM

pith:2017:XBN6M7KMGCB42R7UVIJRJMDGIT

not attested not anchored not stored refs pending

A general framework for the optimal approximation of circular arcs by parametric polynomial curves

Ale\v{s} Vavpeti\v{c}, Emil \v{Z}agar

arxiv:1711.04523 v1 · 2017-11-13 · 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{XBN6M7KMGCB42R7UVIJRJMDGIT}

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	2026-05-18T00:08:54.980403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b85be67d4c3083cd47f4aa1314b06644d4395b2f2d5c3dd771f77c8b28f6fc47

Aliases

arxiv: 1711.04523 · arxiv_version: 1711.04523v1 · doi: 10.48550/arxiv.1711.04523 · pith_short_12: XBN6M7KMGCB4 · pith_short_16: XBN6M7KMGCB42R7U · pith_short_8: XBN6M7KM

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/XBN6M7KMGCB42R7UVIJRJMDGIT \
  | 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: b85be67d4c3083cd47f4aa1314b06644d4395b2f2d5c3dd771f77c8b28f6fc47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d22e7a3c173341806fc1402441234a2de99712c508b701c66f984142da8c227",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-11-13T11:05:19Z",
    "title_canon_sha256": "bab058ef83c3ea82ae6564b9547cb9cfa16611f6963f55ef870a7867a93d833d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.04523",
    "kind": "arxiv",
    "version": 1
  }
}