Pith Number

pith:YBTS4V75

pith:2000:YBTS4V75GNN7CC6BWP6TMZNH5X

not attested not anchored not stored refs pending

Tumour Therapy with Particle Beams

C. Grupen (Department of Physics, Germany), Siegen University

arxiv:physics/0004015 v1 · 2000-04-10 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBTS4V75GNN7CC6BWP6TMZNH5X}

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	2026-07-04T16:22:12.024469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0672e57fd335bf10bc1b3fd3665a7edc72815ec077d7f7f65fc04144b368953

Aliases

arxiv: physics/0004015 · arxiv_version: physics/0004015v1 · doi: 10.48550/arxiv.physics/0004015 · pith_short_12: YBTS4V75GNN7 · pith_short_16: YBTS4V75GNN7CC6B · pith_short_8: YBTS4V75

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/YBTS4V75GNN7CC6BWP6TMZNH5X \
  | 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: c0672e57fd335bf10bc1b3fd3665a7edc72815ec077d7f7f65fc04144b368953

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1176a3eea3f7e14c07ca8877f6a87ab454c957d4d70ea00554d108c72a59002",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2000-04-10T08:45:17Z",
    "title_canon_sha256": "804ead1507daa3c3a789a399c5a4cd1f5456383f4c63de5a2412d0ec4d9618e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0004015",
    "kind": "arxiv",
    "version": 1
  }
}