Pith Number

pith:47NNMCRO

pith:2009:47NNMCROJISDRQG5HIH5PLKL2A

not attested not anchored not stored refs pending

Quantum memory of a squeezed vacuum for arbitrary frequency sidebands

Akira Furusawa, Daisuke Akamatsu, Kazuhito Honda, Manabu Arikawa, Mikio Kozuma, Satoshi Nagatsuka

arxiv:0905.2816 v1 · 2009-05-18 · 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{47NNMCROJISDRQG5HIH5PLKL2A}

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	2026-05-18T02:13:38.962722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7dad60a2e4a2438c0dd3a0fd7ad4bd01889a556366752ac8ee23da03b20811a

Aliases

arxiv: 0905.2816 · arxiv_version: 0905.2816v1 · doi: 10.48550/arxiv.0905.2816 · pith_short_12: 47NNMCROJISD · pith_short_16: 47NNMCROJISDRQG5 · pith_short_8: 47NNMCRO

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/47NNMCROJISDRQG5HIH5PLKL2A \
  | 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: e7dad60a2e4a2438c0dd3a0fd7ad4bd01889a556366752ac8ee23da03b20811a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d34dc7092a1567e1af4f52ad2b0e14c284f623ca31fe67019a1c953d23096c36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-05-18T07:04:22Z",
    "title_canon_sha256": "9ce6fd0eba03b51f1bcbc005448ba6e0b1b5f3d1bbd66dac32c3a12bfcd4a9d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2816",
    "kind": "arxiv",
    "version": 1
  }
}