Pith Number

pith:NJF6PX4R

pith:2012:NJF6PX4RMGHS7LDCGOYYI3W2SK

not attested not anchored not stored refs pending

An adjustable focusing system for a 2 MeV H- ion beam line based on permanent magnet quadrupoles

A. Ereditato, I. Kreslo, M. Nirkko, M. Weber, P. Scampoli, S. Braccini

arxiv:1211.2992 v3 · 2012-11-13 · 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{NJF6PX4RMGHS7LDCGOYYI3W2SK}

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	2026-05-18T03:34:35.181627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a4be7df91618f2fac6233b1846eda929474f91ec6f78c3039ab2aba8a5138bd

Aliases

arxiv: 1211.2992 · arxiv_version: 1211.2992v3 · doi: 10.48550/arxiv.1211.2992 · pith_short_12: NJF6PX4RMGHS · pith_short_16: NJF6PX4RMGHS7LDC · pith_short_8: NJF6PX4R

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/NJF6PX4RMGHS7LDCGOYYI3W2SK \
  | 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: 6a4be7df91618f2fac6233b1846eda929474f91ec6f78c3039ab2aba8a5138bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e6fdaf3e2ba6b1ecc65edb26b7a3a6c806b567075bf96fc9d66e1c58617b1bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2012-11-13T13:59:01Z",
    "title_canon_sha256": "7d4d9c696de36629b8019f233415735a2c32c174bab732f211ed2199e2aea266"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2992",
    "kind": "arxiv",
    "version": 3
  }
}