Pith Number

pith:44MELFUN

pith:2025:44MELFUNJWZHEVB3RDWIU6PMBF

not attested not anchored not stored refs pending

Bayesian Optimization for Ion Beam Centroid Correction

Alexander Katrusiak, Defne Tanyer, Emma Ghelfi, Giordano Kogler Anele, Oliver Kester, Olivier Shelbaya, Rick Baartman, Wojtek Fedorko

arxiv:2504.11731 v1 · 2025-04-16 · physics.acc-ph · physics.app-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{44MELFUNJWZHEVB3RDWIU6PMBF}

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	2026-07-05T10:49:56.568447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e71845968d4db272543b88ec8a79ec094557340a57fda61e9363bd493ddb04cc

Aliases

arxiv: 2504.11731 · arxiv_version: 2504.11731v1 · doi: 10.48550/arxiv.2504.11731 · pith_short_12: 44MELFUNJWZH · pith_short_16: 44MELFUNJWZHEVB3 · pith_short_8: 44MELFUN

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/44MELFUNJWZHEVB3RDWIU6PMBF \
  | 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: e71845968d4db272543b88ec8a79ec094557340a57fda61e9363bd493ddb04cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e653e057e3c6fc85f9076ebd6ea9a211e68d2e78dea329f3ba2d340c6185eb5d",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2025-04-16T03:10:54Z",
    "title_canon_sha256": "68a980a6137bdd40a95f8d1845274d8dab19e6c47d93eaeded398d7ee5798901"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.11731",
    "kind": "arxiv",
    "version": 1
  }
}