Pith Number

pith:7EXW42SV

pith:2000:7EXW42SV4VYI6EKGBOY5C6JIMB

not attested not anchored not stored refs pending

Sympathetic ground state cooling and coherent manipulation with two-ion-crystals

C. F. Roos, D. Leibfried, F. Schmidt-Kaler, H. Rohde, J. Eschner, P. A. Barton, R. Blatt, S. T. Gulde

arxiv:quant-ph/0009031 v1 · 2000-09-08 · 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{7EXW42SV4VYI6EKGBOY5C6JIMB}

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	2026-07-04T16:23:01.823490Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f92f6e6a55e5708f11460bb1d179286065bee1ad7eeaed0673addc9616b4f275

Aliases

arxiv: quant-ph/0009031 · arxiv_version: quant-ph/0009031v1 · doi: 10.48550/arxiv.quant-ph/0009031 · pith_short_12: 7EXW42SV4VYI · pith_short_16: 7EXW42SV4VYI6EKG · pith_short_8: 7EXW42SV

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/7EXW42SV4VYI6EKGBOY5C6JIMB \
  | 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: f92f6e6a55e5708f11460bb1d179286065bee1ad7eeaed0673addc9616b4f275

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e245e11d1944ff4e8f029702582c2737d63781d80f147329751c949e2ba02d30",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2000-09-08T11:01:43Z",
    "title_canon_sha256": "0d14eeac510e5ce1e40af97e1282a6d68eaae48f365679ed22558adcaeb53b66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0009031",
    "kind": "arxiv",
    "version": 1
  }
}