Pith Number

pith:HQD4K73X

pith:2012:HQD4K73XJQF4W4277ZPKL3RCPI

not attested not anchored not stored refs pending

Efficient and long-lived quantum memory with cold atoms inside a ring cavity

Alexander D\"uck, Andreas Reingruber, Bo Zhao, Jian-Wei Pan, Jun Rui, Li Li, Nai-Le Liu, Peter Dietrich, Thorsten Strassel, Xiao-Hui Bao

arxiv:1207.2894 v1 · 2012-07-12 · quant-ph · physics.atom-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQD4K73XJQF4W4277ZPKL3RCPI}

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	2026-05-18T03:51:13.531198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c07c57f774c0bcb735ffe5ea5ee227a0ba3e4696aa72b5fd85b8f8a348af282

Aliases

arxiv: 1207.2894 · arxiv_version: 1207.2894v1 · doi: 10.48550/arxiv.1207.2894 · pith_short_12: HQD4K73XJQF4 · pith_short_16: HQD4K73XJQF4W427 · pith_short_8: HQD4K73X

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/HQD4K73XJQF4W4277ZPKL3RCPI \
  | 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: 3c07c57f774c0bcb735ffe5ea5ee227a0ba3e4696aa72b5fd85b8f8a348af282

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e3d52070bd1a2827fca2c5c477b0b47ed3c6ae33b5e6729a04a144efaaa8900",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-12T09:46:44Z",
    "title_canon_sha256": "7c4ad4e8fef8924fac1660eb002189ba0ca5c1a5f70ab2db8a3e68323a975d67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2894",
    "kind": "arxiv",
    "version": 1
  }
}