Pith Number

pith:ZUQIPXJN

pith:2009:ZUQIPXJNQN2DD423NUIP3ESEFR

not attested not anchored not stored refs pending

Cooling a micro-mechanical resonator to its ground state by measurement back-action

Christian Bergenfeldt, Klaus Molmer

arxiv:0906.1909 v1 · 2009-06-10 · 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{ZUQIPXJNQN2DD423NUIP3ESEFR}

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	2026-05-18T03:23:59.539540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd2087dd2d837431f35b6d10fd92442c6c461c6fff997ec67f12e56b87bc7995

Aliases

arxiv: 0906.1909 · arxiv_version: 0906.1909v1 · doi: 10.48550/arxiv.0906.1909 · pith_short_12: ZUQIPXJNQN2D · pith_short_16: ZUQIPXJNQN2DD423 · pith_short_8: ZUQIPXJN

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/ZUQIPXJNQN2DD423NUIP3ESEFR \
  | 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: cd2087dd2d837431f35b6d10fd92442c6c461c6fff997ec67f12e56b87bc7995

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb94e550ba14a8e1a85de8e3934309c1d9486b5578d775f0ec84891ab4cb9ba6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-06-10T15:52:45Z",
    "title_canon_sha256": "cffbaef20a5e3cdd1cf57a6ce16cd4ca53eac050479720115370b1cf2ac21d39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1909",
    "kind": "arxiv",
    "version": 1
  }
}