Pith Number

pith:2KIMQUXI

pith:2015:2KIMQUXISAFKZYJPWQCNXFR4AZ

not attested not anchored not stored refs pending

Multi-GPU implementation of a VMAT treatment plan optimization algorithm

Fei Peng, Jun Tan, Michael Folkerts, Steve B. Jiang, Xun Jia, Zhen Tian

arxiv:1503.01721 v1 · 2015-03-05 · 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{2KIMQUXISAFKZYJPWQCNXFR4AZ}

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	2026-05-18T00:51:18.735258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d290c852e8900aace12fb404db963c067d6fc4c70b605d34ff6b087dc999414c

Aliases

arxiv: 1503.01721 · arxiv_version: 1503.01721v1 · doi: 10.48550/arxiv.1503.01721 · pith_short_12: 2KIMQUXISAFK · pith_short_16: 2KIMQUXISAFKZYJP · pith_short_8: 2KIMQUXI

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/2KIMQUXISAFKZYJPWQCNXFR4AZ \
  | 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: d290c852e8900aace12fb404db963c067d6fc4c70b605d34ff6b087dc999414c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27a0c8de8b302cd430635ed48205a9f5f20d9b95bfd5641489d9aea0e608307d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2015-03-05T18:18:48Z",
    "title_canon_sha256": "ca207052827c5aadfe5919c42c934eabd4c1c0cd51bac19cdbf6759a27ab9951"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01721",
    "kind": "arxiv",
    "version": 1
  }
}