Pith Number

pith:PPAVLDIL

pith:2025:PPAVLDILN3RXPYCPWCXMUXOYB2

not attested not anchored not stored refs pending

Feedback Cooling and Thermometry of a Single Trapped Ion Using a Knife Edge

Gerd Leuchs, Hans Dang, Markus Sondermann, Martin Fischer, Sebastian Luff

arxiv:2512.16368 v1 · 2025-12-18 · 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{PPAVLDILN3RXPYCPWCXMUXOYB2}

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	2026-07-07T01:16:02.351594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bc1558d0b6ee377e04fb0aeca5dd80e80b7089dbb42dd44c7595484601b8001

Aliases

arxiv: 2512.16368 · arxiv_version: 2512.16368v1 · doi: 10.48550/arxiv.2512.16368 · pith_short_12: PPAVLDILN3RX · pith_short_16: PPAVLDILN3RXPYCP · pith_short_8: PPAVLDIL

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/PPAVLDILN3RXPYCPWCXMUXOYB2 \
  | 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: 7bc1558d0b6ee377e04fb0aeca5dd80e80b7089dbb42dd44c7595484601b8001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d84763c2a6755e647cc5891ad258b0f4bdd34a5e8e4fc2b8a3683b46f84cc079",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-12-18T10:08:28Z",
    "title_canon_sha256": "49fca2ff5f122ee2394b6b09650af0a1042d8af6debaf1716cc55d14537e286a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.16368",
    "kind": "arxiv",
    "version": 1
  }
}