Pith Number

pith:C42WOGA3

pith:2013:C42WOGA3MLFCI4XTLIBAICRWL5

not attested not anchored not stored refs pending

Guaranteed epsilon-optimal treatment plans with minimum number of beams for stereotactic body radiation therapy

David Craft, Hamed Yarmand

arxiv:1304.4861 v1 · 2013-04-17 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C42WOGA3MLFCI4XTLIBAICRWL5}

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	2026-05-18T01:50:31.600418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

173567181b62ca2472f35a02040a365f57d97f2918441e43c64caa2c7177b6d1

Aliases

arxiv: 1304.4861 · arxiv_version: 1304.4861v1 · doi: 10.48550/arxiv.1304.4861 · pith_short_12: C42WOGA3MLFC · pith_short_16: C42WOGA3MLFCI4XT · pith_short_8: C42WOGA3

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/C42WOGA3MLFCI4XTLIBAICRWL5 \
  | 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: 173567181b62ca2472f35a02040a365f57d97f2918441e43c64caa2c7177b6d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "082c531152af1da2d46fb4f9b340fc96c4eedce1f85a1c4106e055b675380a98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2013-04-17T15:38:17Z",
    "title_canon_sha256": "278f1573e287892ea01a4203af1404031edd04079b9e01cd28b8725b26b09ed1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.4861",
    "kind": "arxiv",
    "version": 1
  }
}