Pith Number

pith:2KHC7HKI

pith:2011:2KHC7HKI2FFCJG5WJCUIXR7G2P

not attested not anchored not stored refs pending

Doppler cooling to the Quantum limit

Anders Kastberg (LPMC), Bruce Klappauf (UBC), CQT, David Wilkowski (INLN, Maryvonne Chalony (INLN), PAP)

arxiv:1107.2313 v2 · 2011-07-12 · 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{2KHC7HKI2FFCJG5WJCUIXR7G2P}

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	2026-05-18T02:01:19.630112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d28e2f9d48d14a249bb648a88bc7e6d3fc653a93468e6f50727d7eaad6892297

Aliases

arxiv: 1107.2313 · arxiv_version: 1107.2313v2 · doi: 10.48550/arxiv.1107.2313 · pith_short_12: 2KHC7HKI2FFC · pith_short_16: 2KHC7HKI2FFCJG5W · pith_short_8: 2KHC7HKI

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/2KHC7HKI2FFCJG5WJCUIXR7G2P \
  | 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: d28e2f9d48d14a249bb648a88bc7e6d3fc653a93468e6f50727d7eaad6892297

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707c785e5053aaa4596fb1e71635cecc4ef07512b121260974088e56358f3e25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2011-07-12T14:57:13Z",
    "title_canon_sha256": "095fb6234bb96db7c5747fc04d5273fa589821226223470649202a8cc498ca2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2313",
    "kind": "arxiv",
    "version": 2
  }
}