Pith Number

pith:YUSGICWS

pith:2018:YUSGICWSQV2S76MN2Y3TR653IA

not attested not anchored not stored refs pending

A linear programming approach to inverse planning in Gamma Knife radiosurgery

H{\aa}kan Nordstr\"om, Jens Sj\"olund, Marcus Hennix, Stella Riad

arxiv:1806.03016 v3 · 2018-06-08 · 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{YUSGICWSQV2S76MN2Y3TR653IA}

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	2026-05-17T23:45:56.758506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c524640ad285752ff98dd63738fbbb4034c3b099e4b3ce5f0a61bc9296d58670

Aliases

arxiv: 1806.03016 · arxiv_version: 1806.03016v3 · doi: 10.48550/arxiv.1806.03016 · pith_short_12: YUSGICWSQV2S · pith_short_16: YUSGICWSQV2S76MN · pith_short_8: YUSGICWS

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/YUSGICWSQV2S76MN2Y3TR653IA \
  | 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: c524640ad285752ff98dd63738fbbb4034c3b099e4b3ce5f0a61bc9296d58670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c05427f1b91ca11a890ced1edcab2df14597792919864f30d7464d9a0761b36",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2018-06-08T08:25:55Z",
    "title_canon_sha256": "ea92c494a3e4395f699e1cfe09053ccf08981453b2bf6b25d755181229c5eabb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03016",
    "kind": "arxiv",
    "version": 3
  }
}