Pith Number

pith:VUM4IEMP

pith:2020:VUM4IEMPLP3F6R4DDJ7IMNKBK7

not attested not anchored not stored refs pending

Entanglement-Enhanced Optical Atomic Clock

Akio Kawasaki, Albert F. Adiyatullin, Boris Braverman, Chi Shu, Daisuke Akamatsu, Edwin Pedrozo-Pe\~nafiel, Enrique Mendez, Simone Colombo, Vladan Vuleti\'c, Yanhong Xiao, Zeyang Li

arxiv:2006.07501 v2 · 2020-06-12 · quant-ph · physics.atom-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{VUM4IEMPLP3F6R4DDJ7IMNKBK7}

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	2026-07-05T02:24:09.853403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad19c4118f5bf65f47831a7e86354157dcc037e08b721f78ae1f367096d17e68

Aliases

arxiv: 2006.07501 · arxiv_version: 2006.07501v2 · doi: 10.48550/arxiv.2006.07501 · pith_short_12: VUM4IEMPLP3F · pith_short_16: VUM4IEMPLP3F6R4D · pith_short_8: VUM4IEMP

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/VUM4IEMPLP3F6R4DDJ7IMNKBK7 \
  | 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: ad19c4118f5bf65f47831a7e86354157dcc037e08b721f78ae1f367096d17e68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1331d6c74b74943543fdaf872ff9fe8d09faeb51f95e0d8002dd12a56c73b46b",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-06-12T22:41:34Z",
    "title_canon_sha256": "229662d87a9463f8c373b4b69235397488f18ee12606ea563b6f6bb82a2d461e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.07501",
    "kind": "arxiv",
    "version": 2
  }
}