Pith Number

pith:NW23BKMO

pith:2009:NW23BKMOB7PYIQBO2EU5JNI6WY

not attested not anchored not stored refs pending

High-quality ion beams from a nanometric double-layer target and their application to hadron-therapy

E. Lefebvre, L. Gremillet, M. Grech, R. Nuter, S. Skupin

arxiv:0909.3784 v2 · 2009-09-21 · physics.plasm-ph · physics.acc-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{NW23BKMOB7PYIQBO2EU5JNI6WY}

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	2026-05-18T03:14:08.957801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6db5b0a98e0fdf84402ed129d4b51eb61a23eea42b0155abf9b06dda380fb74f

Aliases

arxiv: 0909.3784 · arxiv_version: 0909.3784v2 · doi: 10.48550/arxiv.0909.3784 · pith_short_12: NW23BKMOB7PY · pith_short_16: NW23BKMOB7PYIQBO · pith_short_8: NW23BKMO

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/NW23BKMOB7PYIQBO2EU5JNI6WY \
  | 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: 6db5b0a98e0fdf84402ed129d4b51eb61a23eea42b0155abf9b06dda380fb74f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "296b09f8d8857414ede6cde656e75802879053e79c130e6f11d935b6bf954e60",
    "cross_cats_sorted": [
      "physics.acc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2009-09-21T14:12:31Z",
    "title_canon_sha256": "e6b7c582d1107893a8245e46e5a16c182a66c5f39b477db406e63211e6939940"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3784",
    "kind": "arxiv",
    "version": 2
  }
}