Pith Number

pith:MZR7ZSEC

pith:2026:MZR7ZSEC5GP6NWOFGMKSVJM3RM

not attested not anchored not stored refs pending

Global optimization of quadratic root-difference minimization under elliptic annulus constraints

Meijia Yang, Yong Xia

arxiv:2605.29294 v1 · 2026-05-28 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MZR7ZSEC5GP6NWOFGMKSVJM3RM}

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	2026-05-29T01:05:29.873197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6663fcc882e99fe6d9c533152aa59b8b3cd534e7cd43e2adeb63b453d559e3ec

Aliases

arxiv: 2605.29294 · arxiv_version: 2605.29294v1 · doi: 10.48550/arxiv.2605.29294 · pith_short_12: MZR7ZSEC5GP6 · pith_short_16: MZR7ZSEC5GP6NWOF · pith_short_8: MZR7ZSEC

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/MZR7ZSEC5GP6NWOFGMKSVJM3RM \
  | 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: 6663fcc882e99fe6d9c533152aa59b8b3cd534e7cd43e2adeb63b453d559e3ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d0262bfd9eb79e6be93151cc923f2130479710a6265bb218f3d805859064bf9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-28T03:21:39Z",
    "title_canon_sha256": "cc17cf9249c0b1b77e14988d85288b0fc3fd613ca31459300b7490635c2cdd8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29294",
    "kind": "arxiv",
    "version": 1
  }
}