Pith Number

pith:PZQ4G7DE

pith:2009:PZQ4G7DENUA25Q25VTBRYX7NZP

not attested not anchored not stored refs pending

Feedback-Optimized Operations with Linear Ion Crystals

F. Schmidt-Kaler, J. F. Eble, K. Singer, P. Zahariev, S. Ulm

arxiv:0912.2527 v1 · 2009-12-13 · 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{PZQ4G7DENUA25Q25VTBRYX7NZP}

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	2026-05-18T01:16:19.406860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e61c37c646d01aec35dacc31c5fedcbe5dc7cb5dcda4945e95980894259aec5

Aliases

arxiv: 0912.2527 · arxiv_version: 0912.2527v1 · doi: 10.48550/arxiv.0912.2527 · pith_short_12: PZQ4G7DENUA2 · pith_short_16: PZQ4G7DENUA25Q25 · pith_short_8: PZQ4G7DE

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/PZQ4G7DENUA25Q25VTBRYX7NZP \
  | 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: 7e61c37c646d01aec35dacc31c5fedcbe5dc7cb5dcda4945e95980894259aec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5b234f49dadbf8fc14332f57be2f190f6e526bbe8ae22aa18ea3ebade9c12cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-13T18:15:40Z",
    "title_canon_sha256": "1c7f45792d8a989fbd2ade6370feb29c86df3b042196b9bb45128560410b1438"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2527",
    "kind": "arxiv",
    "version": 1
  }
}