Pith Number

pith:CE7TSQLE

pith:2009:CE7TSQLELQ2BCJ5LC6RS6XIPVQ

not attested not anchored not stored refs pending

Deterministic Ultracold Ion Source targeting the Heisenberg Limit

F. Schmidt-Kaler, J. Meijer, K. Singer, N. M. Linke, R. Fickler, W. Schnitzler

arxiv:0902.0456 v1 · 2009-02-03 · 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{CE7TSQLELQ2BCJ5LC6RS6XIPVQ}

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	2026-07-04T17:14:20.241710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

113f3941645c341127ab17a32f5d0fac00db2296aed3035f32dc82e796c939ff

Aliases

arxiv: 0902.0456 · arxiv_version: 0902.0456v1 · doi: 10.48550/arxiv.0902.0456 · pith_short_12: CE7TSQLELQ2B · pith_short_16: CE7TSQLELQ2BCJ5L · pith_short_8: CE7TSQLE

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/CE7TSQLELQ2BCJ5LC6RS6XIPVQ \
  | 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: 113f3941645c341127ab17a32f5d0fac00db2296aed3035f32dc82e796c939ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98c19b12dbdf16c6933da1835f9f015be71c243f19fe4c11488f3220ae4e8f62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-02-03T09:42:08Z",
    "title_canon_sha256": "943e7c21360d0ec0a2e5b96df088414ffda333c8c34d944f9373d99548635cfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0456",
    "kind": "arxiv",
    "version": 1
  }
}