Pith Number

pith:QBJBRFID

pith:2009:QBJBRFIDVRFLQUENNSNIYYUNNO

not attested not anchored not stored refs pending

Demonstration of a quantum logic gate in a cryogenic surface-electrode ion trap

Isaac L. Chuang, Jaroslaw Labaziewicz, Ruth Shewmon, Shannon X. Wang, Yufei Ge

arxiv:0912.4892 v3 · 2009-12-24 · 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{QBJBRFIDVRFLQUENNSNIYYUNNO}

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	2026-05-18T02:24:45.369782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8052189503ac4ab8508d6c9a8c628d6ba381f762510cdc45199b795df9f31724

Aliases

arxiv: 0912.4892 · arxiv_version: 0912.4892v3 · doi: 10.48550/arxiv.0912.4892 · pith_short_12: QBJBRFIDVRFL · pith_short_16: QBJBRFIDVRFLQUEN · pith_short_8: QBJBRFID

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/QBJBRFIDVRFLQUENNSNIYYUNNO \
  | 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: 8052189503ac4ab8508d6c9a8c628d6ba381f762510cdc45199b795df9f31724

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f797f068b81c05e69a164334a5ebc28291654ea03343c63a0d3ac84bd349dd05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-24T17:34:04Z",
    "title_canon_sha256": "444d7c4bb0a1688d33a577d87a35a6e187479a4f131b9bbe7d4a160dd6bb7022"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4892",
    "kind": "arxiv",
    "version": 3
  }
}