Pith Number

pith:OURQO4KA

pith:2022:OURQO4KA6KGAZC4OF55TBYIHWO

not attested not anchored not stored refs pending

Superiorization as a novel strategy for linearly constrained inverse radiotherapy treatment planning

Florian Barkmann, Niklas Wahl, Yair Censor

arxiv:2207.13187 v1 · 2022-07-26 · physics.med-ph · 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{OURQO4KA6KGAZC4OF55TBYIHWO}

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	2026-07-05T04:44:03.876531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7523077140f28c0c8b8e2f7b30e107b3816b594bc74df9e0f5c359bfd32a3c7c

Aliases

arxiv: 2207.13187 · arxiv_version: 2207.13187v1 · doi: 10.48550/arxiv.2207.13187 · pith_short_12: OURQO4KA6KGA · pith_short_16: OURQO4KA6KGAZC4O · pith_short_8: OURQO4KA

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/OURQO4KA6KGAZC4OF55TBYIHWO \
  | 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: 7523077140f28c0c8b8e2f7b30e107b3816b594bc74df9e0f5c359bfd32a3c7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92b51fc7311ae5bc83591d86ff9513c7afdbc12d525c4566f4a22aae45c3a64c",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2022-07-26T21:30:20Z",
    "title_canon_sha256": "70f1b229a6b6d0bae4cdcbf847bf691a7668cded6f3eaa30cd6fab4c4c41ecc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.13187",
    "kind": "arxiv",
    "version": 1
  }
}