Pith Number

pith:2QL53UAK

pith:2026:2QL53UAKJY67DOSSKUWAD4SEWG

not attested not anchored not stored refs pending

An Algorithm for Approximating the Metric Projection onto a Superelliptic Disk

Valerian-Alin Fodor, Virgilius-Aurelian Minuta

arxiv:2605.24599 v1 · 2026-05-23 · math.OC · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QL53UAKJY67DOSSKUWAD4SEWG}

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	2026-05-26T01:03:48.358104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d417ddd00a4e3df1ba52552c01f244b19d0174e5a495ea74ace3032a98d835b6

Aliases

arxiv: 2605.24599 · arxiv_version: 2605.24599v1 · doi: 10.48550/arxiv.2605.24599 · pith_short_12: 2QL53UAKJY67 · pith_short_16: 2QL53UAKJY67DOSS · pith_short_8: 2QL53UAK

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/2QL53UAKJY67DOSSKUWAD4SEWG \
  | 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: d417ddd00a4e3df1ba52552c01f244b19d0174e5a495ea74ace3032a98d835b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f95d4e66fd2efb574190b8fbac2384800d948eb1c42aa570898dec92fa788d8",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-23T14:29:44Z",
    "title_canon_sha256": "ce4e1bee39f2b8f687b76ad4908896de5c06766e4b854fbed7bb75c76cf6707d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.24599",
    "kind": "arxiv",
    "version": 1
  }
}