Pith Number

pith:XXZFMIE4

pith:2009:XXZFMIE4Y43Q7APUGWQXYOCD7R

not attested not anchored not stored refs pending

Optimized focusing ion optics for an ultracold deterministic single ion source targeting nm resolution

Ferdinand Schmidt-Kaler, Kilian Singer, Norbert M. Linke, Robert Fickler, Wolfgang Schnitzler

arxiv:0903.3425 v3 · 2009-03-19 · quant-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{XXZFMIE4Y43Q7APUGWQXYOCD7R}

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	2026-05-18T02:14:27.181081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdf256209cc7370f81f435a17c3843fc709cea84f1c1a23b5c8ceb4aa8885bce

Aliases

arxiv: 0903.3425 · arxiv_version: 0903.3425v3 · doi: 10.48550/arxiv.0903.3425 · pith_short_12: XXZFMIE4Y43Q · pith_short_16: XXZFMIE4Y43Q7APU · pith_short_8: XXZFMIE4

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/XXZFMIE4Y43Q7APUGWQXYOCD7R \
  | 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: bdf256209cc7370f81f435a17c3843fc709cea84f1c1a23b5c8ceb4aa8885bce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf32b84b0122cceb7a7cef894dc0c57d1a07c7f23ad2f25bcbd4b0284ee1921a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-03-19T21:10:49Z",
    "title_canon_sha256": "9e9351ecd55a87db817ba034b8a55fd558ae391585af59bb4de85d5a8bb3f383"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3425",
    "kind": "arxiv",
    "version": 3
  }
}