Pith Number

pith:QCOKFLLD

pith:2019:QCOKFLLDWB5FPVQVAS55MKAM3E

not attested not anchored not stored refs pending

Ground-State Cooling of a Single Atom in a High-Bandwidth Cavity

Deepak Pandey, Dieter Meschede, Eduardo Uru\~nuela, Elvira Keiler, Hannes Pfeifer, Tobias Macha, Wolfgang Alt

arxiv:1909.08894 v1 · 2019-09-19 · physics.atom-ph · 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{QCOKFLLDWB5FPVQVAS55MKAM3E}

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	2026-07-05T00:45:10.579448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809ca2ad63b07a57d61504bbd6280cd9121dc5598b9f6acdef8f725ce4acc925

Aliases

arxiv: 1909.08894 · arxiv_version: 1909.08894v1 · doi: 10.48550/arxiv.1909.08894 · pith_short_12: QCOKFLLDWB5F · pith_short_16: QCOKFLLDWB5FPVQV · pith_short_8: QCOKFLLD

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/QCOKFLLDWB5FPVQVAS55MKAM3E \
  | 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: 809ca2ad63b07a57d61504bbd6280cd9121dc5598b9f6acdef8f725ce4acc925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f57f375e5ba9895c75c94699600380aeec1220b4bbcf18fe0d79433ed3bcd96",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2019-09-19T09:59:56Z",
    "title_canon_sha256": "6956f74678d2d9d9a36c5fd67a21accfa474e10ce32b5ad1c8663bba881fb11a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.08894",
    "kind": "arxiv",
    "version": 1
  }
}