Pith Number

pith:ZH6VEBBV

pith:2019:ZH6VEBBV54P56C4I3QOUMYD6Y4

not attested not anchored not stored refs pending

Large energy acceptance gantry for proton therapy utilizing superconducting technology

C. Calzolaio, D. Meer, J. M. Schippers, K. P. Nesteruk, M. Seidel, V. Rizzoglio

arxiv:1901.01821 v1 · 2019-01-07 · 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{ZH6VEBBV54P56C4I3QOUMYD6Y4}

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	2026-07-05T00:32:29.624848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9fd520435ef1fdf0b88dc1d46607ec7293b11d82a3eadc5c96c71715785e2ec

Aliases

arxiv: 1901.01821 · arxiv_version: 1901.01821v1 · doi: 10.48550/arxiv.1901.01821 · pith_short_12: ZH6VEBBV54P5 · pith_short_16: ZH6VEBBV54P56C4I · pith_short_8: ZH6VEBBV

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/ZH6VEBBV54P56C4I3QOUMYD6Y4 \
  | 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: c9fd520435ef1fdf0b88dc1d46607ec7293b11d82a3eadc5c96c71715785e2ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9817bdf7596b83f20ef896b6913c97d14ee8eaa6bd4c1620248741790b61b161",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-01-07T14:13:25Z",
    "title_canon_sha256": "931156f3dc132749a1635d1bb895e560741821226959796520ba0907bf93a435"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01821",
    "kind": "arxiv",
    "version": 1
  }
}